Answer:
y=2x-1
Step-by-step explanation:
first you write out your equation, y=mx+b
then you fill out what you know, 7=m4+b
you find the slope, the formula is y-y/x-x you plug in the numbers, 7-3/4-2 you get 2 which is your slope, m
then you slove for b, 7=2x4+b, b=-1
you write the equation y=2x-1
