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How do you find f(-3) given $f (x) = 3 x - 5$ $f(x)=3x-5$ ?

1 Answer

Apr 12, 2017

$f (- 3) = - 14$ $f(-3)=-14$

Explanation:

To evaluate f( -3 ) substitute x = - 3 in f( x )

$f (- 3) = (3 \times - 3) - 5$ $f(color(red)(-3))=(3xxcolor(red)(-3))-5$

$\times \times = - 9 - 5$ $color(white)(xxxx)=-9-5$

$\times \times = - 14$ $color(white)(xxxx)=-14$

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