For the function f and number a, find the function that gives the slope of the secant line, s(x) = 
, for x ? a. Then describe the behavior of the function values as x approaches a. f(x) = x2 ; a = -10
A. s(x) = x - 10, for x ? -10; as x ? -10, s(x) ? -20
B. s(x) = x - 10, for x ? -10; as x ? -10, s(x) ? -10
C. s(x) = x + 10, for x ? -10; as x ? -10, s(x) ? 0
D. s(x) = x + 10, for x ? -10; as x ? -10, s(x) ? 1
Answer: A
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