13.two quantities ,x and y, vary directly, if x=5 and y=20, find y when x=45. 14.two quantities ,x and y, vary directly, if x=8 and y=48, find y when x=32.

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.