1. Find the slope for the following line: y=(3/4)x-7

A. -7
B. 7
C. 3/4
D. -4/3

2. What is the y-intercept of the graph of the line given by the equation 3y+4x=15?
A. 5
B. 4
C. 3
D. -4/3
Can someone please help answer the questions, but also explain them so I know how to do it next time? Thanks!

8 answers

The slope-intercept form is called that because it shows you the slope. If
y = mx + b, then
the slope is m
the y-intercept is b

#2. If you rearrange the equation to read
y = (-4x+15)/3 = -4/3 x + 5
then you can just read off the intercept.

Note that the two lines are perpendicular, since the product of their slopes is -1.
Thank you very much!
Lesson 5: Review of Graphing and Systems of Equations

1. C
2. A
3. A
4. B
5. C
Cheater lol, these are right though.
1. ¾ | C |
2. 5 | A |
3. (-8,2) | B |
4. (5,4) | D |
5. (1,2) | C |
WAIT I MESSED UP ORDER :
1. ¾ | C |
2. 5 | A |
3. (-8,2) | A |
4. (5,4) | B |
5. (1,2) | C |
1-C
2-C
3-A
4-B
5-D
Savannah<3 is right :]
Savanna is correct
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