Natural logarithms Quiz
10 questions · easy to harder · Algebra 2 · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Calculate ln(e4)Type the answer.
2 Question 2
Calculate ln(e7)Type the answer.
3 Question 3
Solve ex = 5- A) x ≈ 16.09
- B) x ≈ 1.609
- C) x ≈ 0.1609
4 Question 4
Solve ex = 30Type the answer.
5 Question 5
Solve ln(x) = 1- A) x ≈ 10
- B) x ≈ 0.2718
- C) x ≈ 2.718
- D) x ≈ 27.18
6 Question 6
Solve ex + 1 = 10Type the answer.
7 Question 7
Solve ln(x − 1) = 3- A) x ≈ 2.1086
- B) x ≈ 1001
- C) x ≈ 21.086
- D) x ≈ 210.86
8 Question 8
Solve ln(2x) = 1Type the answer.
9 Question 9
Solve e2x + 1 = 9- A) x ≈ 0.0599
- B) x ≈ 0.599
- C) x ≈ 5.99
10 Question 10
Solve ln(2x − 1) = 3Type the answer.