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Let f(x)=4x2 + 5x Evaluate f(-5)
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5 votes
Let f(x)=4x2 + 5x
Evaluate f(-5)

User Matt Ryan
by
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1 Answer

5 votes

Answer:

f(- 5) = 75

Explanation:

Substitute x = - 5 into f(x) , that is

f(- 5) = 4(- 5)² + 5(- 5)

= 4(25) - 25

= 100 - 25

= 75

User Steven Marks
by
4.0k points
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