## Algebra and Trigonometry 10th Edition

$f(x) = x^2-2x+8$ Evaluate f(x) at x= 1 and 5 $f(5) = 5^2-2(5)+8=23$ $f(1) = 1^2-2(1)+8=7$ Average Slope between these points: (f(5)-f(1))/(5-1) = (16)/4= 4