Parent Function: y = sine; Amplitude 8; Reflection over the x-axis; Period 5; Vertical 3 Shift down 10​

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