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

Two sled dogs are pulling on the same sled. The sled needs to travel due North. The first dog, Chuck, is pulling with 135 pounds of force at an angle 15 degrees

An hourly employee needs to fill out her time sheet. What information must the employee enter in the chart before getting paid? total hours worked day of the we

Completa este resumen gramatical. Completa la tabla con las formas apropiadas del pretérito de los verb 1. SABER QUERER Yo supe sabemos Tú quise quisiste Usted/

How can financial literacy affect the bargaining skills

Using the period table of elements of oxidation numbers 1

Why does aspirin appear in different doses and give different effects?

Find the value of x:

use tables to evaluate√{3.45×16.7÷31.5)

HELP PLEASEWhat is the volume of the cylinder?

How do you make puppets in Infinite Craft