153k views
4 votes
Evaluate the function.
f(x) = -4x² + 7x
Find f(5)

2 Answers

3 votes

Answer:

-65

Explanation:

User Kris Van Bael
by
3.6k points
3 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 ~

User Upaang Saxena
by
3.2k points