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algebra-quiz-algebra-homework-help

Question 1


  1. Determine which of the following points lies on the graph of the equation:
    (0,7)
    (0,6)
    (0,5)
    (6,5)
    (1,5)

5 points

Question 2


  1. Complete the table. Use the resulting solution points to sketch the graph of the equation.

5 points

Question 3


  1. Graphically estimate the x- and y- intercepts of the graph:y x3 – 9x
    x-intercept: (±3,0),(0,0)y-intercept: (0,0)
    x-intercept: (3,0),(0,0)y-intercept: (0,0)
    x-intercept: (-3,0),(0,0)y-intercept: (0,0)
    x-intercept: (0,±3),(0,0)y-intercept: (0,0)
    x-intercept (0,3),(0,0)y-intercept (0,0)

5 points

Question 4


  1. Find the x- and y-intercepts of the graph of the equation y 49-7x
    x-intercept: (7,0)y-intercept: (0,-7)
    x-intercept: (49,0)y-intercept: (0,7)
    x-intercept: (-7,0)y-intercept: (0,-49)
    x-intercept: (49,0)y-intercept: (0,49)
    x-intercept: (7,0)y-intercept: (0,49)

5 points

Question 5


  1. Determine whether the value of x 7 is a solution of the equation:
    no
    yes

5 points

Question 6


  1. Solve the equation 8-5x 6

5 points

Question 7


  1. Solve the equation and check your solution.-2-4x 30
    9
    -11
    -8
    7
    -10

5 points

Question 8


  1. Solve the equation and check your solution.5y + 1 6y – 5 + 8y
    2/3
    3/2
    6/5
    5/6
    2/3

5 points

Question 9


  1. Solve the equation and check your solution.67x – 24 3x + 8(8x-3)
    3
    67
    -3
    -67
    All real numbers

5 points

Question 10


  1. Solve the equation and check your solution.
    10
    6
    7
    9
    8

5 points

Question 11


  1. Solve the equation and check your solution. (If not possible, explain why.)
    2
    5
    6
    4
    10

5 points

Question 12


  1. Solve the equation and check your solution. (If not possible, explain why)
    -18
    7
    11
    No solution. The variable is divided out.
    20

5 points

Question 13


  1. Write the quadratic equation in general form.4x2 8 – 9x
    4x2 + 9x + 8 0
    4x2 + 9x -8
    4x2 – 9x – 8 0
    -4x2 + 9x – 8 0
    4x2 + 9x – 8 0

5 points

Question 14


  1. Solve the quadratic equation by factoring.x2 – 6x + 5 0
    -1, 5
    -1,-5
    1,-5
    1,5
    6,5

5 points

Question 15


  1. Solve the quadratic equation by factoring.x2 + 8x + 16 0
    4
    1/4
    -4
    ±4
    1/4

5 points

Question 16


  1. Solve the equation by extracting square roots.(x+6)2 5
    6 + √5
    -6 ± √5
    -6 -√5
    6 ± √5
    -6 + √5

5 points

Question 17


  1. Use the Quadratic Formula to solvex2 + 20x + 98 0
    x -8, x -12
    x -√2 – 10, x √2 – 10
    x -√3 – 10, x √3 – 10
    x 10, x -10
    x -√2 – 9, x √2 – 9

5 points

Question 18


  1. Write the complex number in standard form. √ -9
    3i
    -3i
    9i
    4i
    -9i

5 points

Question 19


  1. Find real numbers a and b such that the equation is true.a + bi 14 + 2i
    a 16, b 4
    a 18, b 6
    a 14, b 2
    a 15, b 14
    a 17, b 5

5 points

Question 20


  1. Find all solutions to the following equation.
    x –17/4
    x 9
    no solution
    x -17
    x -8

5 points

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