Question

Write the equation of the line that has a y-value that increases by 4 for every x that increases by 1. It also crosses the y-axis at –2.

A. y=4x-2
B. y=1/4x-2
C. y=2x+1/4
D. y=2x-4

Answer 1

slope = rise/run. the rise is the increase of y and the run is the increase of x. that would make it 4/1 or just 4. now that you have the slope, plug everything into slope-intercept form. y = mx + b. m = the slope. b = the y-intercept. once every thing is plugged in, then the equation would be y = 4x - 2.
i hope i helped