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if $f(x) = -3x - 2$, find each value. 1. $f(3)$ 2. $f(-7)$

Question

if $f(x) = -3x - 2$, find each value.

  1. $f(3)$
  2. $f(-7)$

Explanation:

Step1: Substitute $x=3$ into $f(x)$

$f(3) = -3(3) - 2$

Step2: Calculate the value

$f(3) = -9 - 2 = -11$

Step3: Substitute $x=-7$ into $f(x)$

$f(-7) = -3(-7) - 2$

Step4: Calculate the value

$f(-7) = 21 - 2 = 19$

Answer:

  1. $f(3) = -11$
  2. $f(-7) = 19$