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GED Math Practice Test 2019
Answer all the multiple-choice questions in this section.
1.) If a = 3, the value of a2– 2 is
- (A) 7
- (B) -7
- (C) 9
- (D) -9
2.) A line 3y = 2x + 6 is shown below.
The y intercept of the line is:
- (A) 2/3
- (B) -2/3
- (C) 2
- (D) -2
Answer: C. 2
Explanation: This point will always have an x coordinate of zero. In the equation 3y = 2x + 6 , the y -intercept is the solution to the equation when x = 0. Substituting the value of x as 3 in 3y = 2x + 6,
3.) Which ordered pair represents ƒ (3) = –5?
- (A) (–5, 3)
- (B) (–3, 5)
- (C) (3, –5)
- (D) (5, –3)
4. Which of the following lines has a zero gradient?
Answer: C.
5.) The domain of the graph shown below is
- (A) {y = 2, y ∈ R}
- (B) {x = 2, x ∈ R }
- (C) {x ≥ 2, x ∈ R}
- (D) {x ≤ 2, x ∈ R }
6.) What is the value of x in the equation: 3x – 5 = 10?
- (A) 2
- (B) 3
- (C) 4
- (D) 5
7.) The values of x that make the equation x² – 4 = 0 true, are
- (A) {–2, 2}
- (B) {–2, 0}
- (C) {0, 2}
- (D) {– 4, 4}
8.) √9x² is equal to
- (A) 6x²
- (B) 9x
- (C) 3x²
- (D) 3x
9. When simplified, the expression (2x – 3) – (x – 4) is
- (A) x-7
- (B) x+1
- (C) x²+7
- (D) x²-1
Answer:(D) 3x
Explanation: 
10.) 3x0 can be simplified to
- (A) 0
- (B) 1
- (C) 2
- (D) 3
11.) The value of (4²)³ in base – index form is equal to
- (A) 42
- (B) 44
- (C) 46
- (D) 48
12.) Which of the following expressions will give the value of the angle marked x in the diagram given below?
- (A) sin x =18/17
- (B) cos x =18/17
- (C) sin x =15/17
- (D) cos x =8/15
13.) In a triangle XYZ, which side is the hypotenuse?
- (A) XY
- (B) YZ
- (C) XZ
- (D) ZY
14.) A toy suitcase measures 8 cm long and 6 cm high. What is the diagonal length of the suitcase?
- (A) 4 cm
- (B) 6 cm
- (C) 8 cm
- (D) 10 cm
15. The perpendicular bisectors of the sides of a triangle meet at the point called
- (A) incenter.
- (B) circumcenter.
- (C) orthocenter.
- (D) centroid.
16.) a× a× a×b×b in base – index form is
- (A) 3a + 2b
- (B) 5ab
- (C) 3ab²
- (D) a³b²
17.) The expression 2 -2 can be simplified to
- (A) 4
- (B) 1/4
- (C) -(1/4)
- (D) -4
18.) Which one of the given equations represents the trigonometric graph shown below?
- (A) y = sin x
- (B) y = cos x
- (C) y = tan x
- (D) y = – sin x
19.) The diagram given below shows the two chords intersecting inside the circle.
The length represented by x is
- (A) 5
- (B) 6
- (C) 13
- (D) 36
Solution for x
x ×𝑥=9 ×4
x² =36
x = √36
x = 6
20.) The original price of a pair of shoes was $32.00. Sita bought it at a discount of 35%. What was the amount of the discount that Sita got for the pair of shoes?
- (A) $11.20
- (B) $20.80
- (C) $18.80
- (D) $43.20
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