Quadratic sequences 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.
- 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
Calculate 2, 6, 12, 20, 30, ..., nth termType the answer.
2 Question 2
Calculate 3, 8, 15, 24, 35, ..., nth termType the answer.
3 Question 3
Calculate 2, 5, 10, 17, 26, ..., nth termType the answer.
4 Question 4
3, 6, 11, 18, 27, ..., find the 10th termType the answer.
5 Question 5
Calculate 3, 9, 19, 33, 51, ..., nth termType the answer.
6 Question 6
6, 11, 18, 27, 38, ..., find the 20th termType the answer.
7 Question 7
Calculate −2, 1, 6, 13, 22, ..., nth termType the answer.
8 Question 8
Calculate 0, 6, 16, 30, 48, ..., nth termType the answer.
9 Question 9
4, 13, 28, 49, 76, ..., find the 12th termType the answer.
10 Question 10
Calculate −1, 4, 13, 26, 43, ..., nth termType the answer.