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Algebra 8 Midterm Review. Solving Equations Linear Equations Graphing Linear Equations Word Problems Miscellaneous $100 $200 $300 $400 $500.

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Presentation on theme: "Algebra 8 Midterm Review. Solving Equations Linear Equations Graphing Linear Equations Word Problems Miscellaneous $100 $200 $300 $400 $500."— Presentation transcript:

1 Algebra 8 Midterm Review

2 Solving Equations Linear Equations Graphing Linear Equations Word Problems Miscellaneous $100 $200 $300 $400 $500

3 Back to Game Board Team 1Team 2Team 3Team 4

4 100 pts Music Score m = 4 Back

5 200 pts Music Score b = -2 Back

6 solve for g:fg - 9h = 10j 300 pts Music Score Back

7 7 - 3r = r - 4(2 + r) 400 pts Music Score no solution Back

8 500 pts Music Score {7, -3} Back

9 100 pts Music Score y + 1 = -2(x - 2) Back Write the equation of a line in point-slope form if the line has a slope of -2 and goes through the point (2, -1).

10 y = 1/2 x 200 pts Music Score Back y = 1/2x + 4 Write the equation of a line in slope-intercept form if the slope of the line is and goes through the point (4, 2).

11 300 pts Music Score Back Write the equation of a line in slope-intercept form if the line goes through the points (3, 5) and (2, -2). y = 7x - 55

12 Write into standard form: 400 pts Music Score 5x - 3y = -24 Back

13 500 pts Music Score y = -4/3x + 10 Back Write the equation of a line in slope-intercept form if the line goes through the point (3, 6) and is perpendicular to 3x - 4y = -2.

14 On a piece of graph paper, graph the equation 100 pts Music Score Back

15 Jackie works for a treadmill company. The red equation represents how much her company spends on building the treadmills. The blue equation represents how profit her company earns per treadmill. How many treadmills does her company have to sell to make their profit equal to the cost to build a treadmill? 200 pts Music Score Jackie's company needs to sell 22 treadmills in order for their profit to equal their cost. Back Number of Treadmills sold Total Profit

16 Solve the following system of equations graphically. Then describe the solution: y = 2x - 17 y = x pts Music Score 1 solution (7, -3), consistent and independent Back

17 Graph the linear function below by finding the x- intercept and y-intercept. 3x - 2y = pts Music Score x-intercept: (4, 0) y-intercept: (0, -6) Back

18 Part A: graph line a: y = 2x - 3 Part B: Construct line b on the coordinate grid so that line a and line b represent a system of linear equations with a solution of (2, 1). Write the equation of line b in slope-intercept form. 500 pts Music Score answers may vary Back

19 State whether each percent of change is percent of increase or decrease. Then find the percent of change. Original: 98.6 New: pts Music Score 35% percent of decrease Back

20 Find the final price of each item. TV: $ Discount: 25% Tax: 7.25% 200 pts Music Score Back $301.64

21 Jamie works at American Eagle and earns a higher salary each year. After 2 years of working, Jamie was making $16 per hour. After 5 years of working, Jamie was making $22. Part A Write an equation in slope-intercept form to represent Jamie's hourly salary per year. Part B What will Jamie's salary be after working for 8 years? 300 pts Music Score y = 2x + 12 After 8 years, she will be making $28 per hour. Back

22 400 pts Music Score Back Write an equation to show that the measure of

23 -2x + 5 = ax + b F ind one value of a and one value for b so that there are no values of x that makes the equation above true. 500 pts Music Score a can be anything other than -2. b can be anything other than 5. Back

24 100 pts Music Score a) nob) noc) yesd) yes Back Determine if each of the following are a function or not. a)b) c)d)

25 200 pts Music Score a) f(4) = 12b) g(-6) = 33c)f(-3) + g(2) = -1 Back If f(x) = 2x + 4 and g(x) =, find each value. a) f(4)b) g(-6)c) f(- 3) + g(2)

26 Write the equation for each line: a) b) 300 pts Music Score a) x = -2b) y = 3 Back

27 400 pts Music Score y = 3/7x - 2/7 Back To the left is a scatter plot with a line of best fit drawn. Using the points (4, 2) and (18, 8), find the equation of the line of best fit.

28 Shelly has $175 to shop for jeans and sweaters. Each pair of jeans costs $25, each sweater cost $20, and she buys 8 items in total. Determine the number of pairs of jeans and sweaters that Shelly bought. 500 pts Music Score Shelly bought 3 pairs of jeans and 5 sweaters Back

29

30 What is the equation of the function on the graph to the left? Daily Double Music Score f(x) = | x + 4 | Back

31 Write your wager in the box. Daily Double Music Score Back Go on to Daily Double Question

32 I nstructions for Playing Jeopardy: · Edit the category titles, questions, and answers. Hide the answer text behind the yellow box. If you click the yellow box, it will fade away - don't worry. It will reset when you come back to the page. If you would like to add a "Daily Double" question, choose the square from the game board that you would like to be the DD and change the link to the Daily Double slide. Divide your class into four teams (or whatever works for you. Just edit the Scoreboard slide appropriately). One representative from the first team chooses a category and a question value. Click the yellow value to go to the question. · Read the question aloud. (You can play the Jeopardy music by clicking the "Music" link at the bottom of the slide if you wish. Click it again to stop it.) When the correct answer has been given, reveal the answer by clicking the yellow- edged box. (You might have to click twice.) Then click "Score" to go to the Scoreboard. Note: Using the left and right arrows will not navigate the game properly. Use only the links that are contained within each page to get around. · Use the pen to add the team's scores. Then click "Back" to go back to the Game Board. · Before going on to the next question, drag the small blue box that is located directly below the Game Board over the last question used to remove it from play. It is cloned infinitely so just keep on draggin'! · When students find the Daily Double slide, click the image to move to the wager screen. Only the team who chose the question may answer. One representative from the team can use the pen to write their wager in the box. If the team answers correctly, they add their wager to their score. If they answer incorrectly, the wager is deducted from their score.


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