WGU C957 Exam Questions with Verified Answers (Correct Update)

WGU C957 Exam Questions with Verified Answers (Correct Update)

Question 1: Exponential function

Answer: Ans-increasing concave up forever or decreasing concave forever; the concavity
never changes

Question 2: Logistic function

Answer: Ans-modeled by an S curve and a center inflection point; increases faster and faster
for the first half of the function and second half will trend downwards; will only change concavity
once

Question 3: Polynomial function

Answer: Ans-will always change direction to rising to falling and vice versa; the degree of
the function depends on the number of turns the data takes

Question 4: Linear function

Answer: Ans-will always form a straight line; concavity will never change; degree of 1

Question 5: What does a linear function model?

Answer: Ans-a constant rate of change

Question 6: What does a polynomial function model?

Answer: Ans-acceleration/deceleration

Question 7: What does an exponential function model?

Answer: Ans-A constant ratio change AND all percentage based
growth

Question 8: What does a logistic function model?

Answer: Ans-bounded growth and decline

Question 9: What is an example of a logistic function model subject?

Answer: Ans-Populations




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