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- 1. Multiple Choice
A balloon is released from the top of a building that is 50 meters tall. The balloon rises at the rate of 4 meters per second. Which equation represents the situation?
y = 4x + 50
y = - 4x + 50
y = 50 - 4x
y = 4x - 50
- 2. Multiple Choice
An airplane is flying at 20,000 ft and needs to ascend up to 35,000 ft to avoid a storm that is up ahead. The plane rises at a rate of 3,000 ft per minute. Which equation shows the height H of the plane after x minutes
H = 3,000x + 20,000
H = 3,000x + 35,000
H = 20,000x + 3,000
H = 35,000x + 3,000
- 3. Multiple Choice
What is the slope of a line that passes through the ordered pairs (1, 8) and (3, 12)?
4
2
-2
1/2
- 4. Multiple Choice
What is the equation of a line that passes through the ordered pairs (1, 8) and (3, 12)?
y = 2x + 6
y = 1/2x + 6
y = 2x
y = 2x + 4
- 5. Multiple Choice
A swimming pool had a leak. After 2 hours it had 800 gallons in it and then after 6 hours it had gone down to 600 gallons. Which equation represents this situation?
y = - 50x + 900
y = - 200x + 900
y = 200x
y = 4x
- 6. Multiple Choice
What is the slope of the graph?
-2
2
1/2
-1/2
- 7. Multiple Choice
What is the y-intercept of the graph?
2
2.5
7
5
- 8. Multiple Choice
What is the slope of the line?
3
-3
1/3
-1/3
- 9. Multiple Choice
What is the y-intercept of the line?
2
-1
8
-4
- 10. Multiple Choice
The starting point in a situation is represented by the _______________
slope
y-intercept
m
x value
- 11. Multiple Choice
Which letter represents the y-intercept in the slope-intercept form of an equation?
b
m
x
y
- 12. Multiple Choice
Which letter represents the slope in the slope-intercept form of an equation?
b
x
y
m
- 13. Multiple Choice
Which equation has a positive slope and a negative y-intercept?
y = - 2x + 6
y = 0.5x + 8
y = 4/3x - 12
y = - 6x - 16
- 14. Multiple Choice
Which equation has a negative slope and a positive y-intercept?
y = -2x + 1/2
y = 4x - 4
y = 1/2x + 5
y = 2x
- 15. Multiple Choice
Which equation has a positive slope and a positive y-intercept?
y = x + 4
y = 6x - 2
y = 3/2x - 3/8
y = - x + 24
- 16. Multiple Choice
What is the slope of a line that passes through the ordered pairs (1, 7) and (2, 12)?
1/5
12
7
5
- 17. Multiple Choice
What is the equation that represents a line that passes through the ordered pairs (1, 7) and (2, 12)?
y = 5x + 2
y = 2x + 5
y = 1/5x
y = - 5x - 2
- 18. Multiple Choice
What is the equation that represents the table?
y = - 2x - 5
y = 2x + 5
y = 1/2x
y = 1/2x + 5
- 19. Multiple Choice
Which equation represents the table?
y = - 2x - 4
y = 2x - 2
y = 2x
y = -2x - 2
- 20. Multiple Choice
Which equation represents the table?
y = -x + 2
y = - 3x
y = 3x + 2
y = 2x + 1/3
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