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gladu [14]
2 years ago
9

Evaluate the function. f(x) = 2x2 Find f(-3)

Mathematics
2 answers:
Viktor [21]2 years ago
8 0

Answer:

Step-by-step explanation:

You have to understand two things about this question.

  • f(x) is a relative of y. So maybe it would help you if you wrote y = 2x^2
  • The second thing you have to understand is when you see a number used instead of the x, that number goes into every x on the right.

f(-3) = 2(-3)^2

f(-3) = 2 * 9

f(-3) = 18

Remember that (-3) ^2 = -3 * - 3 = 9 a positive.

Ede4ka [16]2 years ago
4 0
F(-3)=-12
because f(x) is y=2*2=4
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