Question

Which line represents the direct variation equation y =1/2 x?
line a

line b

line c

line d

Answer 1

Plug in some numbers into 1/2 x, and see if those coordinate pairs match up with one of those lines... :3

Answer 2

Ok, but how does that help me find out which line is the answer?

Answer 3

To start with, let's plug in -1, 0, and 1 into 1/2 x. What are your coordinate pair answers? :)

Answer 4

So take 1/2 and times it by -1 and 0?

Answer 5

Whn i took 1/2*-1 i got 0.5 then 0 with the other

Answer 6

For -1, you should get (-1, -0.5) and for 0, you should have (0,0)
Which line passes through those two points? :)

Answer 7

Write as y = x/2

In this way, it is easy to see that at every point, y is always HALF of x

Answer 8

@anitasonia98 It would be c?

Answer 9

Yup. Nice job! :)