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Post-Assessment

Module 4: Exponential & Logarithmic Functions

About This Assessment

This post-assessment measures how much you've learned about exponential and logarithmic functions after completing the module. These questions are similar in difficulty to the pre-assessment, allowing us to measure your learning gains.

Time: 5-10 minutes | Questions: 5 | Purpose: Measure learning gains

Question 1

Evaluate g(x) = 3^x when x = 4.

A. 12
B. 64
C. 81
D. 243

Question 2

Which function represents exponential decay?

A. f(x) = 2^x
B. f(x) = (1/2)^x
C. f(x) = -x²
D. f(x) = -3x + 2

Question 3

Evaluate log₅(25).

A. 2
B. 5
C. 10
D. 125

Question 4

If you invest $2000 at 4% annual interest compounded annually, which formula represents the amount A after t years?

A. A = 2000 + 4t
B. A = 2000(1.04)^t
C. A = 2000(0.96)^t
D. A = 2000 + 80t

Question 5

A radioactive substance decays so that half of its mass remains after each year. Which type of function best models this situation?

A. Linear function
B. Exponential growth function
C. Exponential decay function
D. Quadratic function

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Post-Assessment

About This Assessment

Evaluate g(x) = 3x when x = 4.

Which function represents exponential decay?

Evaluate log5(25).

If you invest $2000 at 4% annual interest compounded annually, which formula represents the amount A after t years?

A radioactive substance decays so that half of its mass remains after each year. Which type of function best models this situation?

Ready to Submit?

Module 4 Complete! Congratulations!

Evaluate g(x) = 3^x when x = 4.

Evaluate log₅(25).