college algebra
posted by nena .
Given the function f(x) = x^3+ 3x
Find the rate of change between the two stated values for x: 1 to 2
Find the equation of a secant line containing the given points: (1, f(1)) and (2, f(2))

Find f(1) and f(2)
Find the slope f(1)  f(2) / 1  2
Write your equation
Rate of change = slope
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