Answer:
cent/km
Step-by-step explanation:
Given


Required
The fuel cost in 
This is calculated using:




Multiply by
to get the cost in cents
cent/km
cent/km
If you graph out y = x^2 - 1, you'll see that it is a curved parabola. It is not a straight line. So visually this shows the equation is not linear. It's considered nonlinear.
Algebraically, the given equation does not fit the form y = mx+b which is slope intercept form. So this is more confirmation that we do not have a linear function.
Answer:
14
Step-by-step explanation:
I this it would be constant correlation
F(3) is 3 since the equation of the line is f(x)=3