1. In which set(s) of numbers does π belong? A.) irrational only B.) rational only C.) rational and integer D.) rational, integer, and natural Explain in at least one complete sentence how you know your answer is correct. 8.NS.1

2. What is the value of 3 8 ÷ 3 6 ? 8.EE.1

3. What is 0.000068 written in scientific notation? 8.EE.3

4. The equation y = 450x represents the number of miles airplane Z traveled, y, for a flight of x hours. The graph below shows the number of miles airplane W traveled during a 5-hour flight. After 2 hours, which airplane had traveled the farthest and by how much? 8.EE.5

5. What value of x satisfies the equation 3(x + 7) = -18? 8.EE.7b

6. A system of equations is shown below. y = 4x y = x – 6 What is the x-value in the solution to the system? 8.EE.8

7. Define “function” and give an example. 8.F.1

8. The points (-3, -5), (0, 4), and (3, 13) lie on the same line. Which equation describes the function for that line? A.) y = 2x + 1 B.) y = 3x + 4 C.) y = x + 4 D.) y = x + - 2 With at least one complete sentence, explain how you know your answer is correct. 8.F.4

9. 8.F.5 The graph to the right shows the relationships between time and the balance in a checking account over a twelve-month period. Which statement is true? A.) The balance in the account never drops below the starting balance. B.) The balance at the end of the twelve- month period is the same as the beginning balance. C.) The balance in the account increases at a steady rate, decreases at a steady rate, and then levels off. D.) The balance in the account increases at the beginning, and then decreases by the end of the twelve-month period. With at least one complete sentence to explain your reasoning for your answer.

10. Triangle EFG will be translated 5 units down and 2 units to the left. What will be the coordinates of E’? 8.G.3

11. Triangle JKL is shown below. What is the measure of <JKL? 8.G.5

12. A right triangle has a hypotenuse of 11.5 inches. One of its legs is 7.5 inches. What is the approximate length of the other leg? 8.G.7

13. For a science project, Angela constructed a cone to use as a mountain. The cone has a diameter of 10 in. and a height of 15 in. What is the approximate volume of the cone? 8.G.9

14. Lily collected data on the heights of plants after several hours of direct light. Her data is plotted below. What type of relationship is shown between the hours of light and the heights of the plants? A.) Positive, linear relationship B.) Negative, linear relationship C.) Non-linear relationship D.) No relationship Explain in complete sentences how you know. 8.SP.1

15. Anna measured the heights and arm spans of 10 students in her class. She created the scatter plot below. Based on the graph, what is the approximate arm span of a student who is 150 cm tall? 8.SP.3