Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Consider
the statements about the properties of two lines and their intersection. Select the best
answer:
Two lines that have different slopes intersect at exactly one point
a. | True for all cases | c. | Not true for any cases | b. | True for some
cases |
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2.
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Consider
the statements about the properties of two lines and their intersection. Select the best
answer:
Two lines that have the same y-intercept intersect at exactly one point
a. | True for all cases | c. | Not true for any cases | b. | True for some
cases |
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Numeric Response
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3.
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----------------------------------------------------------------------------------------- The grape shows the relationship between the number of oil changes a car has
per year and the average engine repair cost in a year for a sample
popuilation.
Number of Oil changes Per
Year
Enter the approximatee slope of the estimated line of
best fit.
(put answer in as integer or fraction)
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4.
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7345------------------------------------------------------------------------------------------------------ All 8th grade students at a school answer Yes or No to the two survey question
shown.
| Have you ridden on a city bus in the last year? | yes | no | | Have you taken a taxi in the last year | yes | no | | | |
The same students responded to both questions. Find the number find the
number B.
| | Yes Taxi | No Taxi | Total | | Yes Bus | 115 | A | 160 | | No Bus | 73 | 36 | C | | Total | B | 81 | D | | | | |
What is the value of D?
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5.
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----------------------------------------------------------------------------------------- This scatter plot shows the relationship between the age of the
bird
Number of Oil changes Per
Year
The y-intercept of the estimated line of best fit is
at (0,b). Enter the value of b.
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6.
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What is the coeffiecient for y?
4x +
11y = 10
-(4x - 5y) = 0
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0 + ( _y) =
10
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7.
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Solve for x
9x - 7y = 9
x + 7y =
8
Put answer in as integer or fraction
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8.
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What is the coeffiecient for y?
6x +
12y = 4
-(6x - 7y) = 0
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0 + ( _y) =
4
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9.
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Solve for y
–3x + 10y = 9
–3x
+ 2y = 11
Put answer in as integer or fraction
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10.
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Two cars got an oil change at the same auto shop. The shop charges customers for
each quart of oil plus a flat fee for labor. The oil change for one car required 3 quarts of oil and
cost $21.00. The oil change for the other car required 6 quarts of oil and cost $24.00. How
much is the each quart of oil?
round your anwer to hundredth.
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