BritanyJernigan BritanyJernigan

04-06-2015
Mathematics

contestada

If f(3) = 15 and f(5) = 45, which of the following could be f(x)?
a. 4x + 3
b. 2x² – 2x
c. 2x² - x
d. 2x² - 5
e. 5x²

Respuesta :

Panoyin Panoyin

04-06-2015

f(x) = 2x² - x
f(3) = 2(3)² - 3
f(3) = 2(9) - 3
f(3) = 18 - 3
f(3) = 15

f(x) = 2x² - x
f(5) = 2(5)² - 5
f(5) = 2(25) - 5
f(5) = 50 - 5
f(5) = 45

The answer is C.

Answer Link

Otras preguntas

How does Kezia begin to see her father as a human being who needs her sympathy ?chapter 3 beehive

Write a complete sentence using the pronoun y to answer the question whether the following people go to the indicated place. Answer in the affirmative or negati

what is the formula for net primary productivity

What is a small structure within the cell that serves specialized functions?

In ΔDEF, the measure of ∠F=90°, DF = 24, FE = 7, and ED = 25. What ratio represents the sine of ∠E?

Any help would be nice

What building is thua

Solve the following literal equation for b. cb + db = a

A friend wants to know your plans. Answer each of her questions with a complete sentence using the futur immédiat.

What’s a good starter?