Answer:
f(x) = 1000x + 3000
Step-by-step explanation:
the point (0,3000)
p2 (1,4000)
slope = (y2-y1) / (x2-x1)
= (4000 - 3000) /( 1-0)
slope = 1000 = m
y = mx + b
y=1000x + b
Use one of the points to find b :
3000 = 1000(0) + b
b = 3000
f(x) = 1000x + 3000
