Explain, in writing, the steps in graphing and finding the solution to the system of equations.
y = x + 2
y=-x-2
Answers
Answer:
Feel free to copy and paste:
Use the slope-intercept form to find the slope and y-intercept. To do this, use y=mx+b. Plug the variables where m=1 and b=2. Slope of the line is m and y-intercept is value of b, so the slope is 1 while the y-intercept is (0,2). Any line can be graphed using two points, and using two x values to plug them into the equation to find the corresponding y values: 0=x+2 is (-2,0). Y-intercept is already known, so use the known values and make a table where x= -2,0 and y = 0,2. Now, graph the line using the slope, y-intercept, and known points (-2,0), (0,-2) to plot the graph. Coincidingly, the answer to solve your system of equations will be the x-intercept: (-2,0).
Related Questions
Marcos buys 20 folders and 10 binders for a total of $100. Alicia buys 10 folders and 20 binders for $110. What is the price of each folder and each binder?
Answers
Answer:
folder is $3 binder is $4
Step-by-step explanation:
Let folder be x and binders be y
Marcos
20x+10y= 100----------1
Alicia
10x+20y= 110-------------2
solve 1 and 2
20x+10y= 100 X 1
10x+20y= 110 X 2
20x+10y= 100
-20x+40y= 220
-30y= -120
y= 120/30
y= 4
put y= 4 in 1
20x+10y= 100
20x+10(4)= 100
20x+40=100
20x=100-40
20x=60
x= 60/20
x=3
Write a verbal sentence to represent each equation.
8+3x=5
Answers
Answer:
eight plus three times a number
Step-by-step explanation:
I think I'm wrong I don't know I'm not really the master at this (but feel free to do tell me if I'm wrong)
Answer:
eight plus there = to a number
Step-by-step explanation:
please give me brainliest
40 points need NOW Simplify the expression.
Answers
Answer:
[tex]7xy^{2} \sqrt[3]{2xy}[/tex]
Step-by-step explanation:
[tex]\sqrt[3]{686x^{4} y^{7}}[/tex]
[tex]686 = 343 * 2[/tex]
[tex]x^{4} = x^{3} * x[/tex]
[tex]y^{7} = y^{3} * y^{3} * y[/tex]
[tex]\sqrt[3]{343} =7[/tex]
[tex]\sqrt[3]{x^{3}} = x[/tex]
[tex]\sqrt[3]{y^{3}* y^{3}}[/tex] = [tex]y^{2}[/tex]
so you're left with 2, x, and y inside the cube root, and 7, x, and y^2 outside
[tex]7xy^{2} \sqrt[3]{2xy}[/tex]
Which is more, 7 quarts or 218 fluid ounces?
Answers
Answer:
I think 7 quarts is just trying to help ya out ;)
Step-by-step explanation:
Answer:
7 quarts
Step-by-step explanation:218 fluid ounces=6.8125 quarts
Thats why 7 quarts is grater
50 POINTS HELP PLS ASAP
Answers
Answer:
G
Step-by-step explanation:
Raisa’s office is on the sixth floor of a building. From her office, she took the elevator down eight floors to the parking garage. Which number represents the distance and direction of her trip from the parking garage to the ground floor of the building?–8
Answers
Answer:
(C) 2
May nilbin be with you
Answer:
8
Step-by-step explanation:
(3x - 16)
(lly-32)
(6x + 7)
Answers
Answer:
ummm What is the quastion ?
la pyramide du Louvre cest une pyramide a base carrée de 35,4m de large et de 21,6m de haut calculer l'inclinaison dune face par rapport a l'horizontale (arrondire au degrés)
Answers
Answer:
c'est une pyramide régulière à base carrée de35.4 m de large et de 21.6 m de haut. calculer l'inclinaison d'une face par rapport à l'horizontale. ... dans le triangle rectangle SHA: tg SAH = 21,6/17,7 donc l'angle SAH = 50,66° ...
Step-by-step explanation:
A bakery offers a sale price of $2.85 for 6 muffins. What is the price per dozen?
The price per dozen muffins is $
.
Answers
Have a good day
What is the solution to the system of equations? 4x + 2y = 1
5x = y - 18
Answers
Answer:
Step-by-step explanation:
X = -5/2
y = 11/2
Y= -2x + 1/2
Y= 5x + 18
Need help due tonight!
Answers
Answer:
y = 4.375x + 2.5
Step-by-step explanation:
The equation of the line is expressed as y = mx+c
m is the slope
c is the intercept
Using the coordinate points (0, 2.5), (4, 20)
Slope m = 20-2.5/4-0
m = 17.5/4
m = 4.375
Get the intercept
Substitute (0, 2.5) and m = 4.375 into y - mx+c
2.5 = 4.375(0) + c
2.5 = c
Get the equation required
y = 4.375x + 2.5
if the area of the circle is 225pi what is the diameter
Answers
Answer:
30cm
Step-by-step explanation:
Area is πr²
So,
πr²=225π
r=√225
r=15cm
Diameter=2r=30
Maths is easy peasy
Ms. Ingham took 21 pens from a drawer to distribute to the class. If 77 pens
remain in the drawer, how many pens were originally in the drawer?
Answers
Answer:
98 pens
Step-by-step explanation:
If Ms. Ingham took 21 pens and 77 pens remain, add the numbers together to find the total.
21 + 77 = 98
Answer:
98 pens
Step-by-step explanation:
Add: 77+21=98
(Picture included)
Sorry about my handwriting!
Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Brainliest?!?!
6. Diana drew a circle on a coordinate grid and shaded the inside, as shown below.
CLEAR AL
w
Which list of ordered pairs represents points located in the shaded part of
Diana's circle?
Answers
What happens when a figure is dilated .
Answers
Answer:
A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation that creates a larger image is called an enlargement. A dilation that creates a smaller image is called a reduction. A dilation stretches or shrinks the original figure.
kk my baby bro needs help it math 7th grade
0.4(3.21x+5.6)
Answers
Answer:
1.284x + 2.24 is the answer.
Step-by-step explanation:
Simply, all we have to do is distribute the 0.4 to the 3.21x and the 5.6.
(0.4 × 3.21x) + (0.4 × 5.6)
= 1.284x + 2.24
#teamtrees #WAP (Water And Plant)
Answer: = 1.284x + 2.24
explanation: This question is easily solved through the process of distribution.
(0.4 × 3.21x) + (0.4 × 5.6) = 1.284x + 2.24
Sorry for the late answer hope this helped!
Jackson ran 1 1/2 miles in 1/2 of an hour. What is Jackson's unit rate in miles per hour?
Answers
Answer 3 hours
Step-by-step explanation:
2x-7=-3x+18
solve for x
Answers
Answer:
x=5
Step-by-step explanation:
2x−7=−3x+18
Step 1: Add 3x to both sides.
2x−7+3x=−3x+18+3x
5x−7=18
Step 2: Add 7 to both sides.
5x−7+7=18+7
5x=25
Step 3: Divide both sides by 5.
5x
5
=
25
5
x=5
Answer:
x = 5
Step-by-step explanation:
2x - 7 = -3x + 18
2x - 7 + 7 = -3x + 18 + 7
2x = -3x + 25
2x + 3x = -3x + 25 + 3x
5x = 25
x = 5
Determine if \sqrt{3}
3
is rational or irrational and give a reason for your answer.
Answers
Answer:
Irrational
Step-by-step explanation:
The square root of 3 is not a perfect square, therefore it is irrational. Another way you could see if it is rational is if it can be put in a fraction, if it can't, then it is irrational.
Company A charges $125 annual fee plus $5 per hour car share fee.
Company B charges $80 plus $10 per hour. What is the minimum number of
hours that a car share needs to be used per year to make company A a better
deal?
Answers
Answer:
Greater than 9 hours.
Step-by-step explanation:
Company A annual fees = $125
Company A share fee = $5 per hour
Let number of hour be x, then
Company A total fee = $125 + 5x
Similarly, Company B annual fees = $80
Company B share fee = $10 per hour
Let number of hour be x, then
Company B total fee = $80 + 10x
If company A is a better deal, then
125 + 5x < 80 + 10x
= 125 - 80 < 10x - 5x
= 45 < 5x
= x > 45÷ 5
= x > 9
So, number of hours must be greater than 9 hours.
Answer: 10
Step-by-step explanation: took the quiz
heyy i hope ur doing fine could u answer these thankss :)
Answers
D. horizontal translation 3 unites left.
in the following diagram find x
Answers
Answer:
⚠︎ 65 IS YOUR ANSWER!Step-by-step explanation:
180-50 = 130
130 / 2= 65
Answer:
x=65
Step-by-step explanation:
you can set up a equation
50 + x+x =180 = 50 + 2x =180
then minus the 50
2x= 130 and the divide by 2
x=65
Do the ratios 3:2 and 54:10 form a proportion
Answers
Answer:
No.
Step-by-step explanation:
3/2=1.5 and 54/10=5.4.
I NEED THIS ASAP!!! WHOEVER ANSWERS FIRST WILL MARK BRAINLEST
Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation:
a) y = 3.5x + 4; A(...; 5), B(10; ...)
b)7x − 5y = 12; A(...; 9), B(4; ...)
c)y = − 37 x +3; A(...; 6), B(9; ...)
d)y = 0.3x + 1; A(...; 9), B(5; ...)
please answer asap
ty :P
Answers
Answer:
LOOK
Step-by-step explanation:
Put the points into the equation and solve for the missing value.
The pictogram shows information about the numbers of phones sold in a shop over a 5-month period.
Answers
Answer:
a) 5(6) = 30
b) 3.5(6) = 21
c) 153
Step-by-step explanation:
c) 30 + 39 + 21 + 36 + 27 = 153
What is the simplified value of the exponential expression 27 1/3?
A. 1/3
B. 1/9
C. 3
D. 9
Answers
Answer:
C.3 is Answer.
Step-by-step explanation:
I hope it's helpful!
Hope this helps (:
Diego took a survey to find out how many students plan to go to a school band concert. There are more than 1,000 students in his school. He selected a sample by asking the first 50 students he met at band practice.
Answers
Answer: N/A
Step-by-step explanation: We need more info to solve this problem
Answer:
The one above is wrong
The actual answers are A and D
40 times 40 times 30 equals
Answers
48000 is your awnserrrr
Define the variables for the situation. Then enter an equation.
Jana's age plus 8 equals her sister's age.
j = Jana's age B
s = sister's age e
Enter an equation:
+
Answers
Answer:
Definitions of the variables in the situation:
J = Jana's age
S = Sister's age
The Equation:
J + 8 = S
Step-by-step explanation:
Explanation:
In the equation we will use the variable J for Jana and S for Janna's sister. Since we know Jana's age plus 8 equals her sister's age, the equation will be J + 8 = S
help ASAP thanks........
Answers
Answer: Yes, they are similar- and the Scale Factor is 2.5
Step-by-step explanation: To find the scale factor, simply divide the larger number on the bigger shape by its counterpart in the smaller image, so for example: 60 divided by 24 is 2.5, and there is your scale factor. You can further test this by multiplying 4 x 2.5 which gives us 10, the other value on the larger shape.