STAAR Algebra

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Which statement best describes the y-intercept of the graph?

• The water level increased by 0.25 ft per day

• The maximum water level was 19.5 ft

• The initial water level was 16 ft

• The water level was measured for 14 days

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• 40

• 4

• 60

• 1.5

What is the slope of a line that passes through the points (2, 3) and (4, 7)?

• 1

• 2

• 14

• 7

• 21

• 35

• A

• B

• C

• D

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• 200 sq ft/gal

• 1/200 sq ft/gal

• 400 sq ft/gal

• 1/400 sq ft/gal