3 years ago

For the function f(x)=5x^2-7x, what is f(-3)? *

Mathematics

2 answers:

-Dominant- [34]3 years ago

8 0

Answer:

The answer to your question is f(-3) = 66

Step-by-step explanation:

Data

Function f(x) = 5x² - 7x

Process

To find f(x), just substitute the -3 in all the x's of the original equation and simplify.

-Substitution

f(-3) = 5(-3)² - 7(-3)

-Simplify

f(-3) = 5(9) + 21

f(-3) = 45 + 21

-Result

f(-3) = 66

blsea [12.9K]3 years ago

6 0

f(-3) = 66

Step-by-step explanation:

5(-3)^2-7(-3)

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