Vertex form by completing the square 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.
- 1 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
Write x2 + 6x + 5 in vertex formType the answer.
2 Question 2
Write x2 + 2x − 3 in vertex formType the answer.
3 Question 3
Write x2 + 10x + 20 in vertex formType the answer.
4 Question 4
Write x2 + 4x + 7 in vertex formType the answer.
5 Question 5
Write f(x) = x2 + 8x + 12 in vertex formType the answer.
6 Question 6
Write 2x2 − 8x + 3 in vertex formType the answer.
7 Question 7
Write 2x2 + 12x + 7 in vertex formType the answer.
8 Question 8
Write −x2 − 6x + 4 in vertex formType the answer.
9 Question 9
Write 4x2 − 8x + 9 in vertex form- A) 4(x + 1)2 + 5
- B) 4(x − 1)2 + 5
- C) (−1, 5)
10 Question 10
Write −3x2 − 12x − 7 in vertex formType the answer.