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9411 Opener Test Day

Quiz by Michelle Bagley

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10 questions
Show answers
  • Q1
    You are solving a system of equations and this is the final answer: 0 + 0 = 0. What does that mean?
    parallel lines; no solution
    not possible to get this final answer
    one solution: (0, 0)
    same line; infinitely many solutions
    30s
  • Q2
    You are solving a system of equations and this is the final answer: 0 - 0 = -4. What does that mean?
    one solution: (0, 0)
    same line; infinitely many solutions
    not possible to get this final answer
    parallel lines; no solution
    30s
  • Q3
    You are solving a system of equations and this is the final answer: 2y = 0. What does that mean?
    one solution; (0, 0)
    same line; infinitely many solutions
    parallel lines; no solution
    one solution; y-coordinate is 0
    30s
  • Q4
    Select the method of solving equations that we have NOT studied in our class.
    graphing
    combinations
    substitution
    row reduction
    30s
  • Q5
    What method would you use to solve this system of equations and why?
    Question Image
    Combinations because you can multiply the top row by 2 and the bottom row by 3.
    Elimination because adding the equations together will eliminate the y's.
    Addition because 3x + 2x = 5x.
    Substitution because there is an isolated variable.
    30s
  • Q6
    What method would you use to solve this system of equations and why?
    Question Image
    Elimination because adding the equations together will eliminate the y's.
    Substitution because there is an isolated variable.
    Combinations because you can multiply the bottom row by -2.
    Graphing because it is so much fun.
    30s
  • Q7
    What does the graph of y = 8 look like?
    A vertical line that goes through 8 on the x axis.
    A diagonal line with a y-intercept of 8.
    A diagonal line with a slope of 8.
    A horizontal line that goes through 8 on the y axis.
    30s
  • Q8
    Solve this system of equations.
    Question Image
    not enough info
    (-27, 18)
    no solution
    (18, -27)
    30s
  • Q9
    Which of these is a possible solution to the inequality y > 3x + 2 ?
    (1, 5)
    (2, 7)
    (-3, -7)
    (0, 4)
    60s
  • Q10
    What is true about parallel lines?
    Different slopes and different y-intercepts.
    Different slopes and same y-intercepts.
    Same slope and the same y-intercepts.
    Same slope but different y-intercepts.
    60s

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