How do you evaluate the function $h (x) = 3 x - 7$ $h(x)=3x-7$ for #h(-2)?

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Answer 1 · 2018-05-14T14:11:58

See a solution process below:

For each occurrence of $x$ $color(red)(x)$ substitute $- 2$ $color(red)(-2)$ and evaluate the right side of the function:

$h (x) = 3 x - 7$ $h(color(red)(x)) = 3color(red)(x) - 7$ becomes:

$h (- 2) = (3 \times - 2) - 7$ $h(color(red)(-2)) = (3 xx color(red)(-2)) - 7$

$h (- 2) = - 6 - 7$ $h(color(red)(-2)) = -6 - 7$

$h (- 2) = - 13$ $h(color(red)(-2)) = -13$

How do you evaluate the function h(x)=3x-7h(x)=3x−7h(x)=3x-7 for #h(-2)?