Answer:
y=75x+50
y=600
x=3
slope is 3/2
y-intercept is zero
Step-by-step explanation:
since at x=zero the y=50 (then y-intercept is 50)
then let y=nx+50
since at x=2 y=200, 200=2n+50, 2n=150, n=75
then y=75x+50 (then the slope is 75)
at x=8
y=75×8+50=600+50=600
at y=275
then 75x+50=275, 75x=225, x=225/75=3
the slope is 3/2 (because for every change in x=2 the change in y=3
and the slope is (the change in y)/(change in x))
and the y-intercept is zero (because at x=0, y=0)
hope this helps
