College

Given the function [tex]f(x) = -5x^2 - x + 20[/tex], find [tex]f(3)[/tex].

A. -28
B. -13
C. 62
D. 64

Answer :

Final answer:

To find f(3) using the given function f(x) = -5x²-x+20, substitute x = 3 into the function and simplify. The value of f(3) is -28.


Explanation:

To find f(3) using the given function f(x) = -5x²-x+20, we substitute x = 3 into the function and simplify:

f(3) = -5(3)²-(3)+20

f(3) = -5(9)-3+20

f(3) = -45-3+20

f(3) = -28

So, f(3) = -28.


Learn more about Function evaluation here:

https://brainly.com/question/12056604