Find y's for each x
use the formula m=y to the 2 - y to the 1 over x to the 2 - x to the 1

For -2 < x < 3
f(x) = 3x – 4

4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051