Question

Help me if you can please

Answer 1

f(0) = 5, f(7) = 1328, f(-5) = -460

Explanation:

`f(x) = 4x^3 - 7x + 5`

We should substitute the values in the brackets into the equation to find the function's value at that x point.

`f(0) = 4(0)^3 - 7(0) + 5\\\to f(0) = 5`

`f(7) = 4(7)^3 - 7 * 7 + 5\\\to f(7) = 4 * 343 - 49 + 5\\\to f(7) = 1328`

`f(-5) = 4(-5)^3 - 7(-5) + 5\\\to f(-5) = 4 * -125 + 35 + 5\\\to f(-5) = -460`