Question

What is the slope-intercept form of the function that contains the point (–1, 5) and has a slope of –4?

y=_x+_

Answer 1

If it has a slope of -4, you need to find b.

So you want to plug in your coordinate values for x and y to solve.

5=-4(-1)+b

5=4+b you then subtract 4 from both sides to find the answer for b.

1=b

So your equation would be:

y=-4x+1