How do you evaluate the function $f(x)=9x^3-x^2+2$ for f(2)?

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Answer 1 · 2017-08-06T16:03:05

$70$

$f(x) = 9x^3-x^2+2$

$f(2)$ means that we are told that $x =2$ , and asked to find the value for $f(x)$ , which is also $y$

$f(x) = 9x^3-x^2+2$

$f(2) = 9(2)^3-(2)^2+2$

$f(2) = 9(8) -4+2 = 70$

This gives us the ordered pair $(2,70)$

How do you evaluate the function f(x)=9x^3-x^2+2f(x)=9x^3-x^2+2 for f(2)?