Quadratic sequences Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | a_n = n2 + n | Easy | Solved step by step |
| 2 | a_n = n2 + 2n | Easy | Solved step by step |
| 3 | a_n = n2 + 1 | Easy | Solved step by step |
| 4 | a_n = n2 + 2 | Easy | Solved step by step |
| 5 | a_n = 2n2 + 1 | Medium | Solved step by step |
| 6 | a_n = n2 + 2n + 3 | Medium | Solved step by step |
| 7 | a_n = n2 − 3 | Medium | Solved step by step |
| 8 | a_n = 2n2 − 2 | Harder | Solved step by step |
| 9 | a_n = 3n2 + 1 | Harder | Solved step by step |
| 10 | a_n = 2n2 − n − 2 | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.