Scores on an achievement test (a) are related linearly to scores on another test (b). Here are two students’ scores: a = 500, b = 100 and a = 680, b = 127. a. Using the ordered pair (a, b), find a linear equation for these data points. b. Use this linear equation in (a) to predict the score on the b test for a student with a score of 700 on the a test.