Question

Which of the following has a slope of –3 and a y-intercept of –4?

A.
y = –3x + 4

B.
y = 3x + 4

C.
y = –3x – 4

D.
y = 3x – 4

And how do you get the answer for it? I have around 8 more questions like this and I dont understand them

Answer 1

i spy a trick :D
it would be A:
- -4 would turn into + 4

Answer 2

how do you get it though? is there a specific thing for it or something?

Answer 3

how?

Answer 4

your y-intercept b does not change sign it is as it is

Answer 5

oh...so it would be...C?

Answer 6

since y =mx + b
m = ur slope and b equals ur y?

Answer 7

set x = 0
y = -3(0) - 4
y = -4

in the form of y-intercept form
y = mx + b
m is your slope and b is your y-intercept

Answer 8

okay~ thanks