- 1. What is a y-intercept and what variable represents it?
A) where the graph changes; y
B) where the graph crosses the x-axis; m
C) where the graph crosses the y-axis; b
D) where the graph ends; b
- 2. Find the slope of the line that passes through the points (5,-9) and (-4,3)
A) 12/1
B) 6/1
C) -3/4
D) 4/-3
- 3. Determine the equation of the line from the graph.
A) y = 3/2x - 2
B) y = -2/3x + 2
C) y = 2/3x + 2
D) y = 3/2x
- 4. A clothes designer manufactures 112 pairs of jeans every 8 minutes. What is the slope of the line that represents this situation?
A) 8
B) 1/14
C) 14
D) 120
- 5. An amusement park will provide lunch for one person for $4, two people for $6, three people for $8, etc. Write an equation that models the price of lunch as a function of the number of people eating.
A) y = 2x+2
B) y = 2x
C) y = x + 4
D) y = x + 2
- 6. Describe the triangles below.
A) similar
B) slope
C) parallel
D) congruent
- 7. Write a proportion that proves that the slope of the hypotenuse of each triangle is the same.
A) 1/2 = 2/4
B) 2/1 = 4/2
C) 2
D) 2/3 = 4/6
- 8. The graph shows Tiffany's workout on the stair machine in the local gym. If Bob climbs 55 stairs per minute, who will climb more steps in one hour?
A) Tiffany
B) Bob
C) They will climb the same number of steps.
- 9. Given the information, place the trucks in order from slowest to fastest. (Hint: Compare their slopes)
A) B, D, A, C
B) D, C, A, B
C) B, C, A, D
D) A, B, C, D
- 10. Determine the equation of the line in slope-intercept form given the table.
A) y = 4x + 2
B) y = -3x + 6
C) y = 4x - 2
D) y = 2x + 4
- 11. Lisa and Ashton disagreed on the slope of the line below. Lisa said the slope was 2/3 and Ashton said it was 4/6. Who is correct?
A) Both are correct
B) Lisa
C) Neither are correct
D) Ashton
- 12. Daniel has $50 saved and makes $7.50 per hour working. From this information, identify the y-intercept.
A) 0.15
B) 7.5
C) 50
D) 6.6
- 13. A limo company charges a base rate of $35 and $2 per mile. Which equation shows the total cost of a ride in the limo?
A) 2x + 35y = 2
B) y = 2x + 35
C) y = 2x - 35
D) y = 35x + 2
- 14. If you graph the line x = -6, what type of slope would it have?
A) negative
B) zero
C) undefined
D) positive
- 15. If you graph the line y = 2, what type of slope would it have?
A) positive
B) undefined
C) negative
D) zero
- 16. If you graph the line y = -3x + 1, what type of slope would it have?
A) zero
B) undefined
C) negative
D) positive
- 17. What is the equation of this line?
A) y = 2
B) y = 2x + 2
C) y = 2x
D) x = 2
- 18. The table shows the cost of a certain mineral depending on its weight. If graphed, what would the slope of the line be (cost per ounce)?
A) $5/ounce
B) $2.50/ounce
C) $0.50/ounce
D) $2/ounce
- 19. In a recent marathon, Marley averaged 2 miles every 25 minutes. How would you express this as a rate of change (slope)?
A) 25/2
B) 2
C) 25
D) 2/25
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