AASA 8th Grade Math 1 — Questions and Answers
Question 1: What is the slope of the line passing through (2, 3) and (6, 11)?
- 1
- 3
- 2 (Correct answer)
- 4
Correct answer: 2
Slope = (11 − 3) ÷ (6 − 2) = 8 ÷ 4 = 2.
Question 2: Solve for x: 3x − 5 = 16
- x = 7 (Correct answer)
- x = 3
- x = 11
- x = 5
Correct answer: x = 7
3x = 16 + 5 = 21, so x = 21 ÷ 3 = 7.
Question 3: What is the Pythagorean theorem?
- a + b = c
- a² + b² = c² (Correct answer)
- a² − b² = c
- 2a + 2b = c
Correct answer: a² + b² = c²
The Pythagorean theorem states that in a right triangle, a² + b² = c², where c is the hypotenuse.
Question 4: What is the scientific notation for 0.00045?
- 4.5 × 10³
- 4.5 × 10⁻⁴ (Correct answer)
- 45 × 10⁻⁵
- 4.5 × 10⁴
Correct answer: 4.5 × 10⁻⁴
0.00045 = 4.5 × 10⁻⁴ because the decimal moves 4 places to the right.
Question 5: A function is defined by y = 2x + 1. What is y when x = 5?
- 9
- 10
- 11 (Correct answer)
- 12
Correct answer: 11
y = 2(5) + 1 = 10 + 1 = 11.
Question 6: Which of the following is an irrational number?
- 4/5
- √9
- √7 (Correct answer)
- 0.25
Correct answer: √7
√7 cannot be expressed as a simple fraction, making it irrational.
AASA 8th Grade Math 1
What is the slope of the line passing through (2, 3) and (6, 11)?