Question

Given the domain values { -2, 0, 2 }, find the range values for the function y = 3x - 2.

Answer 1

replace x for the values -2, 0 and 2

Answer 2

for example for x=2 then
y=3(2)-2=6-2=4

Answer 3

what??

Answer 4

x=2 is mapped to y=4

Answer 5

ok

Answer 6

try it yourself. with x=-2

Answer 7

i dont understand....

Answer 8

u have y=3x-2

Answer 9

plug-in x=-2

Answer 10

so y=-6-2?

Answer 11

and -6-2=

Answer 12

-8

Answer 13

great this means that x=-2 maps into y=-8

what about x=0?

Answer 14

-3

Answer 15

no.

Answer 16

y=3(0)-2=

Answer 17

-2?

Answer 18

yes.

Answer 19

so the range is the set of y-values you got

Answer 20

oh thanks :)

Answer 21

u r welcome