Question

Write the equation in the slope-intercept form of the line that has a slope of -3 and contains the point (4,-5)

Answer 1

slope intercept form is y=mx+b

You know the slope, m=-3 and you have x and y
Substitute these values into the equation to solve for b.

Answer 2

-5=-3(4)+b
-5 = -12 + b
7=b

Now plug the slope, m, and b into the equation y=mx+b

Answer 3

y=-3(-12)+7?