5550020
dav_r_
5520201.docxQuestion 1
1. Determine which of the following points lies on the graph of the equation:
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(0,7) |
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(0,6) |
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(0,5) |
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(6,5) |
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(1,5) |
Question 2
Complete the table. Use the resulting solution points to sketch the graph of the equation.
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Question3
Graphically estimate the x- and y- intercepts of the graph:
y = x3 - 9x
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x-intercept: (±3,0),(0,0) y-intercept: (0,0) |
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x-intercept: (3,0),(0,0) y-intercept: (0,0) |
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x-intercept: (-3,0),(0,0) y-intercept: (0,0) |
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x-intercept: (0,±3),(0,0) y-intercept: (0,0) |
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x-intercept (0,3),(0,0) y-intercept (0,0) |
Question 4
Find the x- and y-intercepts of the graph of the equation
y=49-7x
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x-intercept: (7,0) y-intercept: (0,-7) |
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x-intercept: (49,0) y-intercept: (0,7) |
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x-intercept: (-7,0) y-intercept: (0,-49) |
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x-intercept: (49,0) y-intercept: (0,49) |
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x-intercept: (7,0) y-intercept: (0,49) |
Question 5
Determine whether the value of x=7 is a solution of the equation:
2.
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no |
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yes |
Question 6
Solve the equation 8-5x=6
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Question 7
Solve the equation and check your solution.
-2-4x=30
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9 |
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-11 |
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-8 |
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7 |
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-10 |
Question 8
Solve the equation and check your solution.
5y + 1 = 6y - 5 + 8y
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2/3 |
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3/2 |
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6/5 |
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5/6 |
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-2/3 |
Question 9
Solve the equation and check your solution.
67x - 24 = 3x + 8(8x-3)
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3 |
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67 |
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-3 |
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-67 |
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All real numbers |
Question 10
Solve the equation and check your solution.
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10 |
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6 |
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7 |
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9 |
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8 |
Question 11
Solve the equation and check your solution. (If not possible, explain why.)
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2 |
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5 |
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6 |
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4 |
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10 |
Question 12
4. Solve the equation and check your solution. (If not possible, explain why)
5.
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-18 |
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7 |
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11 |
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No solution. The variable is divided out. |
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20 |
Question 13
Write the quadratic equation in general form.
4x2 = 8 - 9x
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4x2 + 9x + 8 = 0 |
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4x2 + 9x = -8 |
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4x2 - 9x - 8 = 0 |
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-4x2 + 9x - 8 = 0 |
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4x2 + 9x - 8 = 0 |
Question 14
Solve the quadratic equation by factoring.
x2 - 6x + 5 = 0
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-1, 5 |
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-1,-5 |
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1,-5 |
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1,5 |
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6,5 |
Question 15
Solve the quadratic equation by factoring.
x2 + 8x + 16 = 0
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4 |
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-1/4 |
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-4 |
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±4 |
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1/4 |
Question 16
Solve the equation by extracting square roots.
(x+6)2 = 5
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6 + √5 |
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-6 ± √5 |
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-6 -√5 |
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6 ± √5 |
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-6 + √5 |
Question 17
Use the Quadratic Formula to solve
x2 + 20x + 98 = 0
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x = -8, x = -12 |
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x = -√2 - 10, x = √2 - 10 |
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x = -√3 - 10, x = √3 - 10 |
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x = 10, x = -10 |
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x = -√2 - 9, x = √2 - 9 |
Question 18
Write the complex number in standard form.
√ -9
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3i |
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-3i |
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9i |
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4i |
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-9i |
Question 19
Find real numbers a and b such that the equation is true.
a + bi = 14 + 2i
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a=16, b=4 |
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a=18, b=6 |
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a=14, b=2 |
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a=15, b=14 |
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a=17, b=5 |
Question 20
Find all solutions to the following equation.
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x = -17/4 |
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x=9 |
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no solution |
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x=-17 |
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x=-8 |
