Question

Evaluate f(5) for the function f(x) = 2x2 + x-9. a.46 b. 49 c. 53d.58

Answer 1

Solution

For this case we have the following function:

$f(x)=2x^2+x-9$

If we replace x=5 we got:

$f(5)=2(5)^2+5-9=50+5-9=46$

the correct option is:

a.46