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Unit 4 8th Grade Review

  •  English    6     Public
    Systems of Equations
  •   Study   Slideshow
  • Solve the equation 4x - 8 = 5(x - 7)
    x = 27
  •  10
  • Solve the systems of equations using substitution 4x + 2y = 16 and y = -½x + 5
    (2, 4)
  •  15
  • How many solutions does the system of equations Y = -5x + 4 and Y = 5x + 7 have? What would the graph of both equations look like?
    One solution. Two graphs crossing at one point.
  •  15
  • How many solutions does the system of equations Y = 5x + 4 and Y = 5x + 7 have? What would the graph of both equations look like?
    No solution. Two parallel lines.
  •  15
  • How many solutions does the system of equations Y = 5x + 4 and Y = 5x + 4 have? What would the graph of both equations look like?
    Infinite solutions. Both lines are on top of each other.
  •  15
  • The solution to the system is (5, -19) Choose the equation that might make up the system. A.) Y = -3x - 6 B.) Y = -7x + 16 C.) Y = 2x - 23 D.) Y = x - 17
    B.
  •  15