7.4 Exponential Functions

# 7.4 Exponential Functions - h above sea level by the...

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7.4: Exponential Functions Exponential function is a function in the form  f(x) =   b x   where  b  is a positive real number and  b    1 and  is  any real number. The number  e  is the number that  1 1 + F H G I K J n n  approaches as n →∞ .     Approximate to three decimal places: 1. 3 5 2. 2 e Graph the following exponential functions; state the domain, range, and any horizontal asymptote: 3. y = 2 x 4. y = 1 2 F H G I K J x = 2 -x 5. y = e x y = 2 x+2 ; y = 2 -x-2 ; y = -e x ; y = 2 x – 2 y = 2 -x + 2 y = 2 - e x 6. Atmospheric pressure p measured in mm of mercury is related to the number of km
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Unformatted text preview: h above sea level by the formula p = 760e-0.145h . Find the pressure at a height of 2 km and at a height of 10 km . 7. The formula 1 nt r A P n = + ÷ models the value of an account beginning at P dollars at an interest rate r (as a decimal, compounded n times a year for t years. If you invest \$50,000 today at 5% a year, compounded monthly, what will your investment be worth after 25 years? 8. Problem 18 page 370....
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## This note was uploaded on 01/04/2012 for the course MGF 1107 taught by Professor Patriciabishop during the Fall '11 term at Miami Dade College, Miami.

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