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SAT Mathematics Practice Test 6

Questions 32-34 refer to the following information.

Sunflower Growth

Day	Height (cm)
0	0.00
7	17.93
14	36.36
21	67.76
28	98.10
35	131.00
42	169.50
49	205.50
56	228.30
63	247.10
70	250.50
77	253.80
84	254.50

In 1919, H. S. Reed and R. H. Holland published a paper on the growth of sunflowers. Included in the paper were the table and graph above, which show the height h, in centimeters, of a sunflower t days after the sunflower begins to grow.

Question : 33

Total: 58

The function h, defined by h(t)=at+b,where a and b are constants, models the height, in centimeters, of the sunflower after t days of growth during a time period in which the growth is approximately linear. What does a represent?

The predicted number of centimeters the sunflower grows each day during the period
The predicted height, in centimeters, of the sunflower at the beginning of the period
The predicted height, in centimeters, of the sunflower at the end of the period
The predicted total increase in the height of the sunflower, in centimeters, during the period

Validate

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