The graph shows the relationship between time, in hours, and the population in thousands of a culture of bacteria. 45
40
35
Population
30
25
20
15
10
5
o i 2 3 4 5 6 7 8 9
Time (hours)
Which statement describes the meaning of the point (0, 10) on the graph?
O A. After 10 hours, there are 10,000 bacteria.
B. After 10 hours, there are no more bacteria.
O C. The population began with 10,000 bacteria.
O D. The population is multiplying itself by 10 each hour.
my

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.