What is the range of the function 2x + y = 7

if the domain is {-4, - 2,0, 5, 7) ?

Answer| range: {15, 11, 7, - 3, - 7}

Step-by-step explanation:

Plug in the domain to find the range:

x = 4

2 (-4) + y = 7

-8 + y = 7

y = 15

x = - 2

2 (-2) + y = 7

-4 + y = 7

y = 11

x = 0

2 (0) + y = 7

0 + y = 7

y = 7

x = 5

2 (5) + y = 7

10 + y = 7

y = - 3

x = 7

2 (7) + y = 7

14 + y = 7

y = - 7