BritanyJernigan
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 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

A _______ is a long period of rising stock prices. a. bleak market b. bear market c. bull market d. stagnant market
Kidney stones are mainly formed by which of the following compound ? [A] Sodium chloride[B] Silicates[C] Calcium bicarbonate[D] Calcium Oxalate
which one is it??? I need help with this one please
In the number 956,783,529, how does the value of the digit 5 in the ten millions place compare to the digit 5 in the hundreds place?
Which of the following statements best describes the benefits of the early commercial airline industry? a. It reduced the use of the automobile. b. It provide
whats 33.3 as a fraction
How many 25cm tins can fit on a 600mm by 500mm tray
what is 4/20 in simplest form
3/8 of the cast in a musical have to sing. What fraction of the cast does not have to sing?
What is a metaphor for friend ship