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 to easily remember the difference between the two bones in the lower arm?

How to write 6.45 million in standard form

What were the main points of the Declaration of the Rights of Man?

my area is 93 x 81. what is the square footage

1. Ground tissue is found in a plant's?? stems only. stems and leaves only. roots and stems only. roots, stems, and leaves. 2. If some of the xylem of a you

How many lone pairs does CO2 have? Does it have Single bonds or Double bonds? Does it obey the octet rule?

Ecological equivalents are different species that occupy the same niche, but A.in the same geographical region. B.the same population. C.different geographical

What did the passage of the 18th Amendment and the Volstead Act bring about?

convert 12 kilograms to pounds use 1 kg to 2.2 lb

utilizando la equivalencia indicada, resuelve el siguiente ejercicio: 1 onza = 28.35 gramos 6.71 onzas =______ gramos.