Math Test Grade 2: 5-question challenge
数検2級
Practice questions
How many ways are there to choose 3 people from 5, i.e., the combination C(5,3)?
- 60
- 10
- 20
- 30
What are the coordinates of the vertex of the quadratic function y = x² + 6x + 5?
- (-3, -4)
- (-3, 4)
- (-6, 5)
- (3, 32)
What is the value of P(5,2), the number of ways to choose 2 people from 5 and arrange them in order?
- 30
- 20
- 40
- 10
What is the maximum value of the quadratic function y = -x² + 4x + 1?
- 3
- 5
- 4
- 6
What is the minimum value of the quadratic function y = 3x² - 12x + 7?
- -3
- -5
- -4
- -7
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