Question

Find the range of the function f(x)=4x-1 for the domain {-1 0 1 2 3}

{-5,-3,0,7,11}
{-5,-4,-3,-2,-1}
{-11,-7,-3,1,5}
{-5,-1,3,7,11}

PLEASE HELP

Answer 1

{-5, -1, 3, 7, 11}

Explanation:

The function tells you that a value in the domain is multiplied by 4 and 1 subtracted from the result. Here, the given domain is {-1, 0, 1, 2, 3}.

Multiplying each value of the given domain by 4, we get ...

{-4, 0, 4, 8, 12}

Then subtracting 1 gives ...

{-5, -1, 3, 7, 11} . . . . . matches the last choice