Question

What is the y intercept if y= mx+b with a slope of -4 passing through the point (1,-9)

Answer 1

Answer:

Explanation:

A TIP

Since the slope is given to you, you already know part of the equation. slope is equal to mx. So y=-4x. the B in y=mx+b is y-intercept. The y intercept is where the line comes in contact with the y axis. On a coordinate plane the y intercept would be Y [ex; (x,y)]. It gives you (3,8) so the y intercept would be +8 since the point is positive and not negative.