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

Seven is not an example of _____. an expression a term a variable a constant

HELP HELP ASAPFigure BBB is a scaled copy of Figure AAA.What is the scale factor from Figure AAA to Figure BBB?

The currency of the united states consists primarily of metal coins and paper money. a) true b) false

The reason that most extrasolar planets are found close to their parent stars is.

With regard to researching and writing a paper with proper citations which behavior is least risky?

(06.04) it costs $100 to rent the bowling alley, plus $4 per person. the cost for any number (n) of people can be found using the expression 100 4n. the cost fo

Which organizational pattern works best when readers want to get to key information as soon as possible?

_____ attributes are key product attributes that are most likely to affect a buyer's final choice. these attributes are usually described according to their imp

Which of the following represents a benefit of the Second Amendment to citizens of the United States? It allows citizens to organize into groups for peaceful p

1)Determine the hydroxide concentration in a 0.5M of hydrochloric acid? 0.5M of potassium hydroxide. 2)What is the hydroxide ion concentration of a solution if