Exponential models from words Quiz
10 questions · easy to harder · Algebra 1 · 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.
- 0 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
A town has 2000 people and grows 3% each year. Write the model.Type the answer.
2 Question 2
A car is worth $18000 and loses 15% of its value each year. Write the model.Type the answer.
3 Question 3
40 bacteria triple each hour. Write the model.Type the answer.
4 Question 4
A city has 60000 people and grows 4% each year. Write the model.Type the answer.
5 Question 5
80 mg of a medicine halves every 6 hours. Write the model.Type the answer.
6 Question 6
$1000 grows 5% each year. Write the model.Type the answer.
7 Question 7
200 cells double every 3 days. Write the model.Type the answer.
8 Question 8
A house is worth $250000 and its value grows 6% each year. Write the model.Type the answer.
9 Question 9
A town has 4000 people and grows 2.5% each year. Write the model.Type the answer.
10 Question 10
160 mg of a medicine halves every 8 hours. Write the model.Type the answer.