Using the domain values {-1, 0, 4}, how do you find the range values for relation y=2x-7?

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Answer 1 · 2017-10-16T11:20:56

See a solution process below:

To find the Range of the equation given the Domain in the problem we need to substitute each value in the Range for #x# and calculate #y#:

For #x = -1#:

#y = 2x - 7# becomes:

#y = (2 xx -1) - 7#

#y = -2 - 7#

#y = -9#

For #x = 0#:

#y = 2x - 7# becomes:

#y = (2 xx 0) - 7#

#y = 0 - 7#

#y = -7#

For #x = 4#:

#y = 2x - 7# becomes:

#y = (2 xx 4) - 7#

#y = 8 - 7#

#y = 1#

Therefore the Domain is #{-9, -7, 1}#