Arectangular picture has dimensions 2½ by 1½. it is to be enlarged so that it is still similar to the original rectangle. if the longer dimension is now 10, how much longer than the original is the perimeter now?

10/2.5=4. 4*1.2=6the answer is 6

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