Question

if f(-3) = -8,write a function rule and find the function values for zero, a negative, and a positive value of x

Answer 1

The appropriate function rule is f(x) = x^3.  Note that f(-2) = (-2)^3 = -8.

Then:  

f(0) = 0
f(-10) = -1000
f(7) = 7^3 = 343