GED Math Quiz
Questions: 16 · 10 minutes
1. What is the slope of the line passing through (2, 3) and (6, 11)?
The slope is 1/2.
A rise of 8 gives a slope of 8.
The horizontal change makes the slope 4.
The slope is 2.
2. A phone plan's monthly cost is modeled by C = 25 + 0.15m, where m is the number of minutes used. What does 25 represent?
The number of minutes included at no extra charge
The fixed monthly charge before per-minute costs
The additional charge for each minute used
The greatest possible monthly bill
3. Which description represents the graph of y > 2x - 1?
A dashed boundary line y = 2x - 1 with the region below it shaded
A solid boundary line y = 2x - 1 with the region above it shaded
A dashed boundary line y = 2x - 1 with the region above it shaded
A solid boundary line y = 2x - 1 with no surrounding region shaded
4. The lines y = 2x + 1 and y = -x + 7 are graphed on the same coordinate plane. At what point do they intersect?
They intersect at (2, 5).
Their common point is (1, 3).
Both equations pass through (3, 4).
The intersection occurs at (5, 2).
5. Which equation represents a line parallel to y = -(1/2)x + 3?
y = 2x + 6; this line rises 2 units for every unit moved right
y = -(1/2)x + 6; it has the same slope but a different y-intercept
y = (1/2)x - 6; its positive slope points in the opposite direction
y = -2x + 3; it shares an intercept but is four times as steep
6. Which statement correctly describes the line y = -3x + 5?
It crosses the y-axis at -3 and rises 5 units for every unit moved right.
Beginning at the point (0, 5), the line rises 3 units whenever x increases by 1.
Beginning at the point (0, 5), the line falls 3 units whenever x increases by 1.
It crosses the y-axis at -5 and decreases by 3 units for every unit moved right.
7. Which table represents an exponential function whose output doubles whenever x increases by 1?
x: 0, 1, 2, 3; y: 2, 4, 6, 8
x: 0, 1, 2, 3; y: 3, 6, 12, 20
x: 0, 1, 2, 3; y: 3, 6, 12, 24
x: 0, 1, 2, 3; y: 1, 3, 9, 18
8. Which ordered pair gives the vertex of y = (x - 4)² + 2?
Reflecting the horizontal shift gives (-4, 2).
Reversing the vertical sign gives (4, -2).
Vertex form identifies the point (4, 2).
Switching the shift values gives (2, 4).
9. A taxi fare is modeled by C = 3 + 2m, where m is the number of miles traveled. If the fare is $17, how many miles were traveled?
5 miles
10 miles
8 miles
7 miles
10. Plan A costs $40 plus $5 per class. Plan B costs $16 plus $8 per class. After how many classes will the plans have the same total cost?
6 classes
7 classes
12 classes
8 classes
11. Which table represents a linear function?
x: 0, 1, 2, 3; y: 4, 7, 10, 13
x: 0, 1, 2, 3; y: 2, 4, 8, 16
x: 0, 1, 2, 3; y: 1, 2, 5, 10
x: 0, 1, 2, 3; y: 6, 9, 11, 12
12. What is the x-intercept of the line 3x + 2y = 12?
The line reaches the x-axis at (4, 0).
The point (0, 6) is the requested intercept.
The x-axis crossing occurs at (0, 4).
Substitution gives an intercept of (6, 0).
13. For f(x) = 2x² - 3, what value results when x = -2?
-11, obtained by treating the squared input as -4
5, because 2(-2)² - 3 equals 8 - 3
1, obtained by squaring the product 2(-2)
-5, obtained by evaluating the expression as -8 + 3
14. Which relation represents a function?
{(1, 4), (1, 5), (2, 6)}
{(1, 4), (2, 4), (3, 5)}
{(0, 3), (2, 5), (0, 7)}
{(-1, 2), (3, 4), (3, 2)}
15. A ticket machine accepts the number of tickets purchased as its input. A customer may buy from 0 through 200 tickets, using whole numbers only. Which set describes the practical domain?
All whole numbers from 0 through 200
All positive real numbers less than 200
All whole numbers greater than 200
All real numbers from 0 through 200
16. A ball's height in feet is modeled by h(t) = -16t² + 64t + 5, where t is measured in seconds. What is its average rate of change from t = 1 to t = 2?
69 feet per second
32 feet per second
53 feet per second
16 feet per second