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

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

undeadknight26 · Answer

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

anonymous · Answer

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

nincompoop · Answer

how?

nincompoop · Answer

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

undeadknight26 · Answer

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

undeadknight26 · Answer

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

nincompoop · Answer

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

anonymous · Answer

okay~ thanks