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28-04-2019
Mathematics

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Please help PLEASE I really need help with this question

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28-04-2019

Answer:

f(-4) = 9

Step-by-step explanation:

To find which expression to use, see which one x = -4 fits in. That is x² - 5, since -4 < 3.

Then, plug in the number: (-4)² - 5

Square: 16 - 5

Subtract: 9

f(-4) = 9

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