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Are You Smarter Than a Fifth Grader? 1

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Stay focused and work out each problem in your notebooks 2

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

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

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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)

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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

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

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

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

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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

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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

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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

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

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

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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

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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.

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17 (-2, -2)

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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

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

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

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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

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5-3 Slope-Intercept Form. Linear Equation: an equation that models a linear function The graph of a linear equation contains all the ordered pairs that.

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