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F (x) = -x² + 6x - 18 Find f (-3)
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F (x) = -x² + 6x - 18


Find f (-3)

F (x) = -x² + 6x - 18 Find f (-3)-example-1
User Wil Moore III
by
4.1k points

2 Answers

3 votes

Explanation:


f(x) = - {x}^(2) + 6x - 18 \\ f( - 3) = - {( - 3)}^(2) + 6( - 3) - 18 \\ = - 9 - 18 - 18 \\ = - 45

-45 is the right answer.

User Karl Fast
by
4.1k points
1 vote

Answer:

  • -45

Explanation:

Given

  • f (x) = -x² + 6x - 18

To find f (-3) substitute x with -3

  • f(-3) = -(-3)² + 6(-3) - 18 = - 9 - 18 - 18 = -45
  • f(-3) = -45
User RBA
by
4.3k points
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