Question

Given the domain {-3, 0, 6}, what is the range for the relation 2x + y = 4?






{10, 4, -8}





{-10, -4, 8}





{2, 4, 10}





{-2, 4, 16}

Answer 1

Plugin each value of the domain into the function in place of 'x' to get the corresponding value of 'y'. This will give you the range

Answer 2

Well yah but........

Answer 3

For example if you plug in x = -3 in the equation 2x + y = 4, then you get
2(-3) + y = 4
-6 + y = 4
y = 4 + 6
y = 10
Hence 10 should be in the range.
Can you do the same for the other values of x in the domain?

Answer 4

K! thanx :)

Answer 5

Did you get the answer it should be A

Answer 6

Yah i put a thanks. It was right :)