Question

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

line a.
line b.
line c.
line d.

Answer 1

Line C

Explanation:

the slope is 1/2 so change in y/ change in x which means 1 is the y and 2 is the x.

the y-intercept is 0.

So up 1 right 2 starting from the origin (0,0)

Answer 2

C.

Explanation:

y = 1/ x must pass through the origin because when x = 0, y = 0.

So its either B or C.

A positive slope rises to the right ( 1/2 is positive), so its C.

You can also see that the slope of C is 1/2 because it passes through the points (0.0) and (2, 1).