The amount of money earned for hours spent babysitting is displayed on the graph. Derive the equation of the line through the origin.

A.
y = $11x

B.
y = $5.50x

C.
y = $22x

D.
y = $16.50x

B. y = $5.50x

This is because the line passes through the origin, which means there is no y-intercept. The equation of a line passing through the origin is in the form y = mx, where m is the slope. In this case, the slope is $5.50, so the equation is y = $5.50x.