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Evaluate [tex]f(5)[/tex] for the function [tex]f(x) = 2x^2 + x - 9[/tex].

A. 46
B. 49
C. 53
D. 58

Answer :

Solution

For this case we have the following function:

[tex]f(x)=2x^2+x-9[/tex]

If we replace x=5 we got:

[tex]f(5)=2(5)^2+5-9=50+5-9=46[/tex]

the correct option is:

a.46

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