Help ASAP 100 PTS!!!!
Describe how to determine the average rate of change between x = 1 and x = 3 for the function f(x) = 3×3 + 1. Include the average rate of change in your answer. Please show all work and explain it thourougly.
Help ASAP 100 PTS!!!!
Describe how to determine the average rate of change between x = 1 and x = 3 for the function f(x) = 3×3 + 1. Include the average rate of change in your answer. Please show all work and explain it thourougly.
Answer:
39
Step-by-step explanation:
Find the value of f(x) at both points
f(3) = 3(3)³ + 1 = 82
f(1) = 3(1)³ + 1 = 4
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Average Rate of Change is just like slope
Divide the change in f(x) by the change in x
r = (82 – 4) / (3 – 1)
r = 78/2
r = 39