WVGSA Mathematics 4

Question 1

Which of the following is an example of an irrational number?

Accepted Answer

√7

Answer

√7 cannot be expressed as a fraction of integers, making it irrational.

Question 2

Solve for x: 5x − 3 = 22

Accepted Answer

x = 5

Answer

5x = 22 + 3 = 25, so x = 25 ÷ 5 = 5.

Question 3

A circle has a radius of 6 cm. What is its circumference? (Use π ≈ 3.14)

Accepted Answer

37.68 cm

Answer

Circumference = 2πr = 2 × 3.14 × 6 = 37.68 cm.

Question 4

Which graph represents a proportional relationship?

Accepted Answer

A straight line through the origin

Answer

A proportional relationship is represented by a straight line passing through the origin (0, 0).

Question 5

What is the median of the data set: 4, 7, 9, 3, 5?

Accepted Answer

5

Answer

Ordered: 3, 4, 5, 7, 9 — the middle value is 5.

(WVGSA) West Virginia General Summative Assessment Practice Test