The pairs of triangle are similar. find its length.

X would be 4 and y would be 6 ? 

Y is 6 cm and x is 4 cm because you look at the rate of change for the sides you have (5 and 10) and 5x2 is 10 so 3x2=y and 8/2=4

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