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Question :
21) Refer to Table 1A.3.3. If we were to draw : 1417854

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21) Refer to Table 1A.3.3. If we were to draw a graph of this relationship, when would the slope be positive?

A) never

B) only if *x* is less than 5

C) only if *x* equals 5

D) only if *x* is greater than 5

E) We do not have enough information to tell.

22) Refer to Table 1A.3.3. When *x* equals 5, the slope is

A) 5.

B) -2.

C) +2.

D) 0.

E) infinite.

23) Refer to Table 1A.3.3. When *x* equals 5,

A) *y* is at a maximum.

B) *y* is at a minimum.

C) the slope is positive.

D) the slope is negative.

E) the slope is first positive and then becomes negative.

24) At all points along a straight line, slope is

A) positive.

B) negative.

C) constant.

D) zero.

E) infinity.

*Use the figure below to answer the following question.*

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**Figure 1A.3.6**

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25) What is the slope of the line in Figure A1.3.6?

A) 2

B) 1/2.

C) 3

D) 1/3

E) -3

*Use the figure below to answer the following question.*

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**Figure 1A.3.7**

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26) The slope of the line in Figure 1A.3.7 is

A) 1.

B) -1.

C) 1/2.

D) 2.

E) dependent on where you measure it.

*Use the figure below to answer the following question.*

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**Figure 1A.3.8**

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27) The slope of the line in Figure 1A.3.8 is

A) 3/2.

B) 2/3.

C) -3/2.

D) -2/3.

E) none of the above.

*Use the figure below to answer the following questions.*

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**Figure 1A.3.9**

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28) Refer to Figure 1A.3.9. Which one of the graphs shows a line with a zero slope?

A) (a)

B) (b)

C) (c)

D) (d)

E) (a), (b), and (c)

29) Refer to Figure 1A.3.9. Which one of the graphs shows a line with an infinite slope?

A) (a)

B) (b)

C) (c)

D) (d)

E) (b) and (c)

*Use the figure below to answer the following questions.*

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**Figure 1A.3.10**

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30) Refer to Figure 1A.3.10. The figure shows a relationship between two variables,* x* and *y*. The slope at point *A* is

A) 2

B) -2

C) 0.25

D) -0.25

E) -4

31) Refer to Figure 1A.3.10. The figure shows a relationship between two variables,* x* and *y*. The slope at point *B* is

A) 2

B) -2

C) 0.25

D) -0.25

E) 0.5

*Use the figure below to answer the following question.*

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**Figure 1A.3.11**

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32) Refer to Figure 1A.3.11. The graph shows a ________ relationship. The absolute value of the slope of the relationship ________ as the value of *x* increases.

A) positive; increases

B) positive; decreases

C) negative; decreases

D) negative; increases

E) negative; does not change