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10 votes
10 votes
F(x) = -4x² + 3x − 11
Find f(-4)

User Marcos Nunes
by
2.7k points

2 Answers

15 votes
15 votes

Explanation:

1.


f( - 4) = - 4( - 4) ^(2) + 3( - 4) - 11

2.


f( - 4) = - 4(16) - 12 - 11

3.


f( - 4) = - 64 - 23

4.


f( - 4) = - 87

User Dragan Radivojevic
by
2.8k points
22 votes
22 votes

Answer:

f(-4) = - 87

Explanation:

f(-4) = - 4·(-4)^2 + 3·(-4) - 11

f(-4) = - 4·16 - 12 - 11

f(-4) = - 64 - 12 - 11

f(-4) = - 87

User Kshitij Kohli
by
2.7k points