Question 972818: Mrs. Bailey gives a test, and her students’ scores range from 30 to 70. She decides to curve the scores, so that they range from 65 to 95. Let “x” be an original score, and “y” be a curved score. Using the ordered pairs (30,65) and (70,95), write the equation in slope/intercept form that she should use to curve the test scores.
what will the original score of 62 become?
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! slope of the line between the ordered pairs is (95-65)/(70-30) = (30/40)=3/4
point slope formula
y-65=(3/4)(x-30)
y-65=(3/4)x - 22.5
y=(3/4)x + 42.5
if x=62
y=46.5 +42.5=89
It is a high score curved, but the student was at the upper end of the original interval.
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