Evaluate the function. f(x) = -4x² + 7x Find f(5)

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Fabian Bettag asked Oct 13, 2023

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2 votes

Evaluate the function.
f(x) = -4x² + 7x
Find f(5)

Mathematics
high-school

Fabian Bettag asked Oct 13, 2023

by Fabian Bettag

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13 votes

Answer:

-65

Explanation:

Richard Hodges answered Oct 14, 2023

by Richard Hodges

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9 votes

Given ~

$\tt \: f(x) = - 4 {x}^(2) + 7x$

$\:$

put x=5 in given function ~

$\:$

$\tt \: f(5) = - 4(5) ^(2) + 7(5)$

$\:$

$\tt \: f(5) = - 4(25) + 7(5)$

$\:$

$\tt \: f(5) = -100 + 35$

$\:$

$\underline{\boxed{\red{ \tt f(5) = - 65}}}{\green✓}$

$\:$

hope helps ~

Jimmetry answered Oct 19, 2023

by Jimmetry

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