(a)
To calculate: To estimate the number of bacteria after
(a)
Answer to Problem 18PPS
The number of bacteria after
Explanation of Solution
Given information: The population of bacteria in a culture increases according to the function
Calculation:
Given that the population of bacteria in a culture increases according to the function
Number of bacteria after
In order to plot the graph of the function, find the solutions of the equation
When
When
When
Plotting the points on graph:
Conclusion:
Hence, the number of bacteria after
(b)
To calculate: To identify the y-intercept and explain its meaning
(b)
Answer to Problem 18PPS
y-intercept is
Explanation of Solution
Given information: The population of bacteria in a culture increases according to the function
Calculation:
Given that the population of bacteria in a culture increases according to the function
y-intercept is calculated by substituting
This means that initial number of bacteria are
Conclusion:
Hence, y-intercept is
Chapter 9 Solutions
Pre-Algebra Student Edition
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