Answer:
y = -4x + 10
Explanation:
The rate of change of a linear function is constant.
Looking at the answer choices we see that the only linear function given is y = -4x + 10 - other functions are non-linear; therefore, the correct answer choice is the first option: y = -4x + 10.
We can confirm our answer by taking the derivative of y = -4x + 10
[tex]\frac{dy}{dx}=\frac{d(-4x+10)}{dx}[/tex][tex]=-4\frac{dx}{dx}+\frac{d10}{dx}[/tex][tex]=-4[/tex]which is a constant!
