Question

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

y = –3x + 4

y = –3x – 4

y = 3x + 4

y = 3x – 4

Answer 1

y=mx+b
m=slope
b=y intercept

Answer 2

what?

Answer 3

That is slope inter step form
we are given the slope
-3
if m=-3
replace m in the equation with -3
y=mx+b
now what do we have?

Answer 4

oh i see now

Answer 5

Right :-)
Try writing the whole equation now :)

Answer 6

The second one since the first part of it says "-3x", which is the slope. The second half says "-4", which is the y intercept.

Answer 7

Yes so y=-3x-4