What is the range of the function f (x) = 4x + 9, given the domain D = {-4, - 2, 0, 2}?

A.

R = {-17, - 9, - 1, 17}

B.

R = {-7, - 1, 9, 17}

C.

R = {-7, 1, 9, 17}

D.

R = {1, 7, 9, 17}

Question

Mathematics

Marlene Richmond

29 March, 13:18

What is the range of the function f (x) = 4x + 9, given the domain D = {-4, - 2, 0, 2}?

A.

R = {-17, - 9, - 1, 17}

B.

R = {-7, - 1, 9, 17}

C.

R = {-7, 1, 9, 17}

D.

R = {1, 7, 9, 17}

+3

Answers (1)

Know the Answer?

Phoenix Davies · Answer 1

f (x) = 4x+9

At x=-4

f (-4) = 4 (-4) + 9 = - 16 + 9 = - 7

At x=-2

f (-2) = 4 (-2) + 9 = - 8+9 = 1

At x = 0

f (0) = 4 (0) + 9 = 9

At x = 2

f (2) = 4 (2) + 9 = 8+9 = 17

So the range is {-7, 1, 9, 17}, i. e. Option C

What is the range of the function f (x) = 4x + 9, given the domain D = {-4, - 2, 0, 2}?A.R = {-17, - 9, - 1, 17}B.R = {-7, - 1, 9, 17}C.R = {-7, 1, 9, 17}D.R = {1, 7, 9, 17}

What is the range of the function f (x) = 4x + 9, given the domain D = {-4, - 2, 0, 2}?

A.

R = {-17, - 9, - 1, 17}

B.

R = {-7, - 1, 9, 17}

C.

R = {-7, 1, 9, 17}

D.

R = {1, 7, 9, 17}