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Simplify by combining like terms.
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1)
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Solve the equation.
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2)
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a) | 8, –8 | b) | 7, –7 | c) | 6 | d) | 6,
–6 |
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3)
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4)
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5)
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a) | 1, 8 | b) | 8 | c) | –1, –8 | d) | no solution |
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6)
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For  ,  .
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Graph the inequality.
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7)
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4x – 2y < –3
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8)
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–3x – y £ 9
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Solve the inequality. Graph the solution set.
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9)
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26 + 6b ³ 2(3b + 4)
a) | all real numbers
 | c) | b ³ 
 | b) | b £ 
 | d) | no solutions
 |
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10)
|
2(2m – 5) – 6 >
–36
a) | m < 
 | c) | m < –5
 | b) | m >
–5
 | d) | m > 
 |
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11)
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–4k + 5 £ 21
a) | k ³ –4
 | c) | k £ –4
 | b) | k ³ 
 | d) | k £ 
 |
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12)
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A bag contains 6 red marbles, 6 white marbles, and 4 blue marbles. Find
P(red or blue).
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13)
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Graph the equation  .
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14)
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Write an inequality for the graph.  a) | –6x + 5y ³
–30 | c) | 5x – 6y £
–30 | b) | –6x + 5y £
–30 | d) | 5x –
6y ³ –30 |
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15)
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Solve and graph  .
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Evaluate the expression for the given value of the variable(s).
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16)
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17)
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 ; x = –3
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18)
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Graph the equation –3x – y = 6.
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Find the slope of the line.
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19)
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20)
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Solve the inequality. Graph the solution.
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21)
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22)
|
a) | –18 > x > 8
 | c) | –36 < x <
16
 | b) | –18 < x < 8
 | d) | 
 |
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23)
|
A spinner is numbered from 1 through 10 with each number equally likely to
occur. What is the probability of obtaining a number less than 2 or greater than 7 in a single
spin?
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Find the slope of the line through the pair of points.
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24)
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(6, 12) and (–6, –2)
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25)
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