Question 8 (1 point) Find the average rate of change of the function as x changes from a to b.
=
– x2 + 3x + 8
-
f(2
a = 0
b = 5
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Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?