Answer:
a) f(x) = 4x+50
Step-by-step explanation:
The slope-intercept equation ---> y=mx+b , m=slope, b=y-intercept
a) f(x)=4x+50
m=4
b=50
The slope=4 meaning that the rate of change is consistently 4
b) g(x)=3x-4
m=3
b=-4
The slope=3 meaning that the rate of change is consistently 3