Find the range f (x) = -2x-5 for the domain (-2,-1,1,2).

Question

Mathematics

Ariel Huerta

9 August, 22:28

Find the range f (x) = -2x-5 for the domain (-2,-1,1,2).

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Answers (1)

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Lilly Andersen · Answer 1

{ - 9, - 7, - 3, - 1 }

Step-by-step explanation:

To obtain the range substitute the values of x from the domain into f (x)

f ( - 2) = - 2 ( - 2) - 5 = 4 - 5 = - 1

f ( - 1) = - 2 ( - 1) - 5 = 2 - 5 = - 3

f (1) = - 2 (1) - 5 = - 2 - 5 = - 7

f (2) = - 2 (2) - 5 = - 4 - 5 = - 9

range is { - 9, - 7, - 3, - 1 }