Question

PLEASE ANSWER
Given the domain {-4, 0, 5}, what is the range for the relation y = -2x + 4?

Answer 1

{12, 4, -6}

Explanation:

I believe that would be your answer.

If we substitute -4 for x in y= -2x+4 you get, 12

y= -2(-4)+4

y= 8+4

y= 12

Then for 0

y= -2(0)+4

y= 4

Then for 5

y= -2(5) +4

y= -10 + 4

y= 6

12, 4, 6.

Hope this helps, let me know if its correct or not.

Answer 2

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`y = f(x) = - 2x + 4`

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`f( - 4) = - 2( - 4) + 4`

`f( - 4) = 8 + 4`

`f( - 4) = 12`

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`f(0) = - 2(0) + 4`

`f(0) = 0 + 4`

`f(0) = 4`

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`f(5) = - 2(5) + 4`

`f(5) = - 10 + 4`

`f(5) = - 6`

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Thus ;

Range = { -6 , 4 , 12 }

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