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Ƒ(x) = −4x² + 4x
Find f(-5)

User Vidhya
by
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1 Answer

1 vote

To find Ƒ(-5), you can plug -5 in for x in the expression for Ƒ(x).

The expression for Ƒ(x) is Ƒ(x) = −4x² + 4x, so when x = -5, Ƒ(x) becomes Ƒ(-5) = −4(-5)² + 4(-5).

This simplifies to:

Ƒ(-5) = -4(25) + (-20)

Which is equal to:

Ƒ(-5) = -100 + (-20)

Which is equal to:

Ƒ(-5) = -120

So, Ƒ(-5) = -120.

User Alkersan
by
7.8k points

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