One of the data values in the data set shown is missing.

71, 74, 84, 85, 77, 90, ?

Given that mean is not the best measure of center for the data set, which of these could be the missing value?

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

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.