Question

Please help me! 30 points!

Answer 1

y = 9

Explanation:

The x-coordinate of all points on the y-axis is 0. To find where the line crosses the y-axis, set x equal to zero and solve for y.

y = -4x + 9

Let x = 0:

y = -4(0) + 9

y = 0 + 9

y = 9

The line crosses the y-axis at y = 9.

Answer 2

At y=9

y=mx+b

b= y-int

y=4x+9

b=9

y-int=9