How can you find $f (2)$ $f(2)$ if $f (x) = 3 x^{2} - 2$ $f(x) = 3x^2 - 2$ ?

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How can you find $f (2)$ $f(2)$ if $f (x) = 3 x^{2} - 2$ $f(x) = 3x^2 - 2$ ?

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Answer 1 · 2016-06-27T01:13:22

$f (2) = 10$ $f(2)=10$

Explanation:

$f (2)$ $f(2)$ is the output value of $f (x)$ $f(x)$ when every $x$ $x$ variable in $3 x^{2} - 2$ $3x^2-2$ is replaced with a $2$ $2$ .

Thus,

$f (2) = 3 {(2)}^{2} - 2$ $color(green)f(2)=3(2)^2-2$

$= 3 (4) - 2$ $=3(4)-2$

$= 12 - 2$ $=12-2$

$=color(green)(|bar(ul(color(white)(a/a)color(black)(10)color(white)(a/a)|)))$

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How can you find $f (2)$ $f(2)$ if $f (x) = 3 x^{2} - 2$ $f(x) = 3x^2 - 2$ ?

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Explanation:

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How can you find f(2)f(2)f(2) if f(x) = 3x^2 - 2f(x)=3x2−2f(x) = 3x^2 - 2?

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How can you find $f (2)$ $f(2)$ if $f (x) = 3 x^{2} - 2$ $f(x) = 3x^2 - 2$ ?