How do you find the range of # f(x) = 2x²# if {-2, -2, 0, 1/2}?

2 Answers
Feb 6, 2018

Answer:

The range is the set of y values

Explanation:

Simply plug in all of your domain (x) values into your equation and calculate each y value. Be sure to use parenthesis correctly.

Example: #2(-2)^2=2*4=8#

Feb 6, 2018

Answer:

#y in{8,0,1/2}#

Explanation:

#"the range is the corresponding values of y for the "#
#"given values of x in the domain"#

#"domain is "x in{-2,0,1/2}#

#rArrf(color(red)(-2))=2(color(red)(-2))^2=2xx4=8#

#rArrf(color(red)(0))=2(color(red)(0))^2=0#

#rArrf(color(red)(1/2))=2(color(red)(1/2))^2=2xx1/4=1/2#

#"range is "y in{8,0,1/2}#