2 - 1 © 2012 Pearson Education, Inc.. All rights reserved. Section 2.4 Exponential Functions Warm-up: Page 78 #62 How are Exponential & Logarithmic Functions.

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2 - 1 © 2012 Pearson Education, Inc.. All rights reserved. Section 2.4 Exponential Functions Warm-up: Page 78 #62 How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 2 © 2012 Pearson Education, Inc.. All rights reserved. How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 3 © 2012 Pearson Education, Inc.. All rights reserved. Your Turn 1 Solve Solution: Since the bases must be the same, write 25 as 5 2 and 125 as 5 3. How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 4 © 2012 Pearson Education, Inc.. All rights reserved. Assessment Prompt #1 Page 86 #15, 17, 19 How are Functions Graphed and Applied?How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 5 © 2012 Pearson Education, Inc.. All rights reserved. How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 6 © 2012 Pearson Education, Inc.. All rights reserved. Assessment Prompt #2 Graph How are Functions Graphed and Applied?How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 7 © 2012 Pearson Education, Inc.. All rights reserved. How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 8 © 2012 Pearson Education, Inc.. All rights reserved. Examples Find the interest earned on $4400 at 3.25% interest compounded quarterly for 5 years. Solution: Use the formula for compound interest with P = 4400, r = , m = 4, and t = 5. The investment plus the interest is $ The interest amounts to $ − $4400 = $ How are Exponential & Logarithmic Functions Graphed and Applied?

2 - 9 © 2012 Pearson Education, Inc.. All rights reserved. Example #2 Find the amount after 4 years if $800 is invested in an account earning 3.15% compounded continuously. Solution: In the formula for continuous compounding, let P = 800, t = 4 and r = to get or $ How are Exponential & Logarithmic Functions Graphed and Applied?

© 2012 Pearson Education, Inc.. All rights reserved. Graphs of Basic Functions How are Exponential & Logarithmic Functions Graphed and Applied?

© 2012 Pearson Education, Inc.. All rights reserved. Assessment Prompt #3 How are Functions Graphed and Applied?  Group Check  Page #37,43,47 How are Exponential & Logarithmic Functions Graphed and Applied?

© 2012 Pearson Education, Inc.. All rights reserved. HOMEWORK pages #14-32even,38,48 How are Functions Evaluated? How are Functions Graphed and Applied?How are Exponential & Logarithmic Functions Graphed and Applied?