Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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Solve the equation by finding square
roots.
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1
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2
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Use a graphing calculator to solve the equation  . If necessary, round to the nearest hundredth.
A | –0.84, 0.4 | C | –1.68,
0.79 | B | –0.62, 0.62 | D | –0.4,
0.84 |
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Solve the equation.
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3
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4
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Solve the proportion.
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5
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6
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Solve by factoring.
 = 0
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7
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Identify the vertex and the y-intercept of the graph
of the function  .
A | vertex: (–2, 5);
y-intercept:
4 | C | vertex: (–2, –5);
y-intercept:
–1 | B | vertex: (2, 5);
y-intercept:
–1 | D | vertex: (2, –5);
y-intercept:
–1 |
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Use the Quadratic Formula to solve the
equation.
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8
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Use the elimination method to solve the
system.
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9
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A | (2, –1) | B | (–2,
1) | C | (–1, 2) | D | (1,
–2) |
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Simplify the expression.
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10
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11
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12
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Write  in vertex form.
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13
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Which is the graph of  ?
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14
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Dalco Manufacturing estimates that its weekly profit,
P, in hundreds of dollars, can be approximated by the formula  , where x is the
number of units produced per week, in thousands.
| a. | How
many units should the company produce per week to earn the maximum profit? | | b. | Find the maximum weekly profit. | | |
A | 1,000 units; $500 | C | 1,000 units;
$100 | B | 3,000 units; $700 | D | 2,000 units;
$400 |
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15
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Find the additive inverse of  .
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16
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What is the solution to the following system of
equations?
A | (0, 2) | C | (–1,
5) | B | (0, 5) | D | (5,
0) |
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Solve the system by the method of
substitution.
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17
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A | (1, –2, 0) | B | (–1, 2,
0) | C | (–1, –2, 1) | D | (–1,
–2, 0) |
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18
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The function  models the height y in feet of
a stone t seconds after it is dropped from the edge of a vertical cliff. How long will it take
the stone to hit the ground? Round to the nearest hundredth of a second.
A | 5.16 seconds | C | 10.32
seconds | B | 7.3 seconds | D | 0.25
seconds |
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19
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Find  .
A |  | B | –16 | C | –2 | D |  |
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20
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A group of 42 people attended a ball game. There were twice
as many children as adults in the group. Set up a system of equations that represents the numbers of
adults and children who attended the game and solve the system to find the number of children who
were in the group.
A |  ; 28 adults, 14 children | C |  ; 14 adults, 28 children | B |  ; 20 adults; 28 children | D |  ; 28 adults; 20
children |
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