How do you find the range of t(x)=2x−9 for the domain (-2,0,3,8)?

1 Answer
Jim G.
Apr 21, 2017

{−13,−9,−3,7}

Explanation:

The range is the values obtained for y from the given values in the domain.
To obtain these, substitute values from domain into t( x )

t(−2)=(2×−2)−9=−4−9=−13

t(0)=(2×0)−9=0−9=−9

t(3)=(2×3)−9=6−9=−3

t(8)=(2×8)−9=16−9=7

⇒ range is {−13,−9,−3,7}

Related questions
See all questions in Domain and Range of a Function
Impact of this question
1524 views around the world
You can reuse this answer
Creative Commons License