Question

PLEASE HELP!!

Given the domain {-2,1,6} what is the range for the relation 4x+y=3?

A.{-11, 1, 21}
B.{11, -1, -21}
C.{-1, 4, 9}
D.{-5, 7, 27}

Answer 1

@hartnn Do you think you can help me?

Answer 2

just [lug in those values in 'x' and find the value of 'y'
when x= -2, y=.... ?

Answer 3

*plug

Answer 4

how would i find y?

Answer 5

4x+y=3
4 (-2)+y = 3
-8+y=3
y= 3+8 =11
did you get this ?
can you now find 'y' for x=1 and x=6 ?

Answer 6

I sort of get it but I don't get it. Where did the 8 come from?

Answer 7

4*2 =8
so
-4*2 =-8

Answer 8

is it -5

Answer 9

3+-8=-5

Answer 10

no, it'll be 3+8
because we ADD 8 on both sides to get rid of -8 on left.
3+8=11

Answer 11

Ohh okay I see

Answer 12

What comes next

Answer 13

can you now find 'y' for x=1 and x=6 ?

Answer 14

also, if you look at choices, the correct one is identifiable now.

Answer 15

11

Answer 16

4(-2)+11=3

Answer 17

we already found 1 value of y as 11
so what was the point of doing that ?

Answer 18

Wait so the answer is B

Answer 19

yes.

Answer 20

Okay. Thanks

Answer 21

welcome.