# Are You Smarter Than a Fifth Grader? 1. Stay focused and work out each problem in your notebooks 2.

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Are You Smarter Than a Fifth Grader? 1

Stay focused and work out each problem in your notebooks 2

Copy problems into your notebook and SHOW ALL of your work!! 3

The review is only as good as you make it…..so make it your best! 4

5 Determine whether the relationship between the two quantities described in each table is linear or not AND explain why. X 1 2 3 4 Y 18.0 19.6 21.2 22.8 Yes, they have the same common difference (+1.6)

6 The table below shows the average rate of increase in a nurse’s salary over the past 20 years. Explain whether the growth in salary is linear. Year 1990199520072012 Salary\$23,000\$27,500\$38,300\$42,800 Yes…all the rates of change are the same

7 Find the slope of the line in the diagram below: -1/10 = -0.1

8 Find the slope between the points (5, 3) and (-2, 8) -5/7 = 5/-7

9 What is the rate of change for the function shown below:

10 What is the rate of change for the function represented In the table? X-201 Y-313 a.-2 b.0 c.2 d.½ c

11 Jimbo Jones spent \$46.50 on 3 T-shirts. The next time he spent \$31.00 on two T-shirts. What is the cost for one T-shirt? \$15.50

12 State the slope and y-intercept for each equation: Y = 5x – 1y = 0.3x3x + y = 6 Slope = 5 Y-int. = -1 Slope = 0.3 Y-int. = 0 Slope = -3 Y-int. = 6

13 Write an equation in slope-intercept form for the graph shown:

14 State the x-intercept and y-intercept of the graph below: X-int. = 6 Y-int. = -9

15 State the x- and y-intercepts of the equation: 5x + 4y = -20, AND sketch the graph using the intercepts x-int. = -4y-int. = -5

16 Monty has a total of \$290 in ten and five dollar bills. This can be represented by the function 10x + 5y = 290. Interpret the x- and y- intercepts. The x-intercept of 29 represents the number of \$10 bills There would be if there were zero \$5 bills. The y-intercept of 58 represents the number of \$5 bills There would be if there were zero \$10 bills.

17 (-2, -2)

18 Julie has 81 pieces of jewelry. She has twice as many earrings as she has necklaces. Create and solve a system of equations to find out how many earrings And necklaces she has. x + y = 81 Y = 2x Solution: 27 necklaces, 54 earrings

19 Solve the following system of equations by substitution : X = -4 and Y = -8

20 (x, y) = (4, -7)

What are you going to do to prepare for the Chapter 6 Test? a. Review my notes b. Do homework problems over again c. Study with my parents or friends d. All of the above e.wait until tonight and think about studying 21