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1. |
When Kristin works 8 hours, she earns $60. When she works 20 hours, she earns $150. Write a linear equation that describes her earnings. Assume that the changes increase linearly. |
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Hint |
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2. |
Find an equation of the line that passes through (0, -6) and (5, 3). |
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Hint |
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3. |
Which equation describes the line that contains the points (6, 2) and (12, 4)? |
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C. |
y = -3x |
D. |
y = 3x |
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Hint |
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4. |
Which equation describes the line that contains the points (-5, 2) and (3, 7)? |
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Hint |
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5. |
A phone company charges for service as follows: they charge a certain amount for a visit, and then they charge a certain amount per hour after that. If a three-hour service visit costs $220, and a job that takes an hour and a half costs $145, how much is the cost of a visit before the amount of time spent is factored in? |
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A. |
$217 |
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$50 |
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C. |
$70 |
D. |
$25 |
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Hint |
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