# Graph by hand. - PowerPoint PPT Presentation

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#1. #2. #3. Graph by hand. #4. #5. If \$5000 is invested at 9% interest, find the amount after three years if the interest is compounded (a) monthly (b) quarterly (c) continuously. If \$5000 is invested at 9% interest, find the amount after three years if the interest is compounded

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Graph by hand.

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Graph by hand.

### #5

If \$5000 is invested at 9% interest, find the amount after three years if the interest is compounded

(a) monthly (b) quarterly (c) continuously.

If \$5000 is invested at 9% interest, find the amount after three years if the interest is compounded

(a) monthly (b) quarterly (c) continuously.

### #6

Write the equation in logarithmic form:

Solve for x:

### #8

Write as a single logarithm.

### #9

Using your calculator and the change of base formula, evaluate .

### #10

Use your calculator to solve for N:

Graph by hand.

### #12

Determine the domain of

Graph by hand

True or false:

Solve for x:

Solve for x:

### #18

Six thousand dollars is deposited into a fund at an annual percentage rate of 13%. Find the time required for the investment to double if the interest is compounded continuously.

Six thousand dollars is deposited into a fund at an annual percentage rate of 13%. Find the time required for the investment to double if the interest is compounded continuously.

### #19

Use a graphing utility to find the points of intersection of the graphs of

### #20

Use a graphing utility to find the power model for the data (1, 1), (2, 5), (3, 8), and (4, 17) in the form .

(1, 1), (2, 5), (3, 8), and (4, 17)

### #21

For selected years from 1980 to 2000, the average salary y (in thousands of dollars) for public school teachers for the year t can be modeled by the equation

where t = 10 represents 1980. During which year did the average salary for public school teachers reach \$40,000?

### #21

For selected years from 1980 to 2000, the average salary y (in thousands of dollars) for public school teachers for the year t can be modeled by the equation

where t = 10 represents 1980. During which year did the average salary for public school teachers reach \$40,000?

### #22

On a college campus of 5000 students, one student returns from vacation with a contagious flu virus. The spread of the virus is modeled by

where y is the total number infected after t days. The college will cancel classes when 40% or more of the students are infected. (a) How many students are infected after 5 days? (b) After how many days will the college cancel classes?

On a college campus of 5000 students, one student returns from vacation with a contagious flu virus. The spread of the virus is modeled by

where y is the total number infected after t days. The college will cancel classes when 40% or more of the students are infected. (a) How many students are infected after 5 days? (b) After how many days will the college cancel classes?