Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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Graph the relation in the table. Then use the vertical-line test. Is the relation a
function?
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| 1. |
a. | The relation is
a function. | c. | The relation is
a function. | b. | The relation is not a function. | d. | The relation is not a function. | | | | |
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| 2. | Find
the solution of y = 6x + 1 for x = 5. a. | (5,  ) | b. | (–29, 5) | c. | (5, 36) | d. | (5, 31) | | | | | | | | |
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| 3. | Which
ordered pair is a solution of the equation 5x + y = –23? a. | (–3,
–4) | b. | (–5,
–3) | c. | (–4,
–3) | d. | (–3,
–5) | | | | | | | | |
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| 4. | Dennis takes care of private swimming pools. He charges $50 to travel to a home and
then $30 per hour. The equation t = 50 + 30h models the total charge t for
h hours of service. Which ordered pair (h, t) is NOT a solution for the
equation? a. | (8,
290) | b. | (10,
350) | c. | (2,
110) | d. | (3,
180) | | | | | | | | |
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Graph the linear equation.
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| 5. | y =  x – 5
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| 6. | x = 2
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Solve the equation for y. Then graph the equation.
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| 7. | 5x – 4y = 12
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Find the slope of the line.
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| 8. |
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Find the slope of the line through the pair of points.
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| 9. | C(–6, –7), K(–1, –7)
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Identify the slope and y-intercept of the graph of the equation. Then graph
the equation.
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| 10. | y =  x + 1 a. | slope:  ;
y-intercept: –1
| c. | slope:  ; y-intercept:
1
| b. | slope:  ;
y-intercept: 1
| d. | |
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