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

Before leaving their ship anchored in Cape Cod Bay, the Pilgrims agreed to the terms established by which of the following: A) The fundamental Orders of Connect

Julie goes to the sports store and spends $40.50 before tax. She buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. How much

how manyatoms of mercury are in 1.4214E+1 ml sample

balance this equation CO2(g) + H2o (g) show that the balanced equation obeys the law if conversation of mass

PLEASE HELP WITH #14 AND #7 PLEASE A.S.A.P !!!

If a line is defined by the equation y = 5x + 2, what is the slope?

An ant travels at a constant rate of 30cm every 2 minutes.At what speed does the ant travel per minute

10. What kind of person makes a good entrepreneur? List at least two personality traits of a successful entrepreneur.

Solve this analogy problem: thick : thin :: heavy : _____ Question 1 options: gray round rosy light

HAMLET ACT 1 What does queen Gertrude tell hamlet?