37.7k views
1 vote
Suppose _ . Compute the following:

Suppose _ . Compute the following:-example-1

1 Answer

3 votes

Explanation:

f(x) = x² - 5x - 9

To solve both expressions first find f( -4) and f(5)

For f(- 4)

Substitute the value of x that's - 4 into the expression

That's

f(-4) = (-4)² - 5(-4) - 9

= 16 + 20 - 9

= 36 - 9

f(-4) = 27

For f(-5)

Substitute 5 into f (x)

That's

f(5) = 5² - 5(5) - 9

= 25 - 25 - 9

f(5) = - 9

A).

f(-4) + f(5) = 27 - 9 = 18

B).

f(-4) - f(5) = 27 -- 9 = 27 + 9 = 36

Hope this helps you

User BartoszMiller
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories