What do all direct variation graphs have in common?
A.All direct variation graphs are linear and they all go through the origin
B.All direct variation graphs are linear with positive slopes and they all go through the origin.
C.All direct variation graphs are linear and they occur in the first quadrant.
D. All direct variation graphs are linear with positive slopes and they occur in the first quadrant.

Question

What do all direct variation graphs have in common?
A.All direct variation graphs are linear and they all go through the origin
B.All direct variation graphs are linear with positive slopes and they all go through the origin.
C.All direct variation graphs are linear and they occur in the first quadrant.	
D.	All direct variation graphs are linear with positive slopes and they occur in the first quadrant.

anonymous · Answer

Direct variation has the equation y = kx, where k a the constant of variation.

Why not graph y = kx?