- 1. 1. (F4) Sara starts with $80 a week and spends $10 per week. Which graph shows this?
A) B
B) A
C) D
D) C
- 2. 2. (F4) Darcy pulls the plug in the bathtub. The amount of water, in gallons, left in the tub overtime is shown in the graph provided. Which of the following statements are true? (check all that apply!) Notice that these answers are "boxes" instead of squares. This is an indicator that more than one answer is necessary.
A) The graph is a linear relationship.
B) 8 represents the y-intercept/initial value
C) The slope of the line is -5
D) As the time increases, the amount of water increases
- 3. 3. (F4) Decide which represents the correct equation in slope-intercept form for the table.
A) y = 1/3x + 1
B) y = -1/3x - 2
C) y = 3x - 2
D) y = -3/1x - 2
- 4. 4. (F4) Based on this graph, determine the equation for the line shown:
A) y = 1x + 2
B) y = x + 1
C) y = 2x
D) y = 2x + 1
- 5. 5. (EE5) Indicate the two equivalent Slopes:
A) 1/2 and 2/1
B) -3/4 and -3/8
C) 10/20 and 2/4
D) 3/9 and 6/12
- 6. 6. (EE5) Lisa and Ashton disagreed on the slope of the line in the picture. Lisa said the slope was 2 and Ashton said it was 4/2. Who is correct?
A) Lisa
B) Neither are correct
C) Both are correct
D) Ashton
- 7. 7. (EE5) Calculate the slope of a line that contains the following pair of points:(-1,5) and (2,7).
A) -2/3
B) 3/2
C) 6/5
D) 2/3
- 8. 8. (EE5) Two scenarios have been given. Which description is true?
A) Scenario 2 has a rate that is greater than scenario 1.
B) Scenarios 1 has a rate that is greater than scenario 2
C) Scenario 2 cannot be compared because it is not in a graph.
- 9. 13. (EE6) Explain why ∆ACB is similar to ∆DFE and deduce that AB has the same slope as BE . Choose the BEST answer
A) ABC is similar to DFE because they are both triangles
B) ABC is similar to DFE because they both share a proportional slope.
C) ABC is similar to DFE because they both are graphed on a line
- 10. 14. (EE6) What can be concluded by these two triangles?
A) Triangle A represents a positive slope and triangle B represents a negative slope.
B) They show that the two triangles are congruent because they share the same slope which is 3/2
C) The triangles do not describe the slope.
D) The triangles show different slopes, therefore they are not similar triangles
- 11. 15. A linear equation, is shown on the graph. Write an equation for the line. If the slope were to change to 3, describe how the new line would look. (remember if you can't visualize this...you can always graph it on paper to physically see, but it is not required). (3 Points Possible) Please type your answers in complete sentences/thoughts.
- 12. John started his very own savings account. He had a starting balance that he put in the bank and added more money every month. Identify the slope AND describe what it means in this situation. Then, determine the y-intercept AND explain what it means in this situation. Finally, write an equation that models the situation. Please type your answers in complete sentences/thoughts. (5 points possible)
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