If $f (x) = - 2 x - 3$ $f(x)=-2x-3$ and $g (x) = x^{2} + 5 x$ $g(x)=x^2+5x$ , what is $f (6)$ $f(6)$ ?

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Answer 1 · 2018-03-24T15:54:10

$- 15$ $-15$

We are given: $f (x) = - 2 x - 3$ $f(x)=-2x-3$

So, $f (6)$ $f(6)$ would just mean plugging in $x = 6$ $x=6$ into the function.

$:.f(6)=-2*6-3$

$=-12-3$

$=-15$

If f(x)=-2x-3f(x)=−2x−3f(x)=-2x-3 and g(x)=x^2+5xg(x)=x2+5xg(x)=x^2+5x, what is f(6)f(6)f(6)?