Please help due in 15 minutes

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a

Idon’t know but you’ll figure it out