Warm Up L8-2 Obj: Identify the role of constants in y = abcx

L8-2 Obj: Identify the role of constants in y = abcx  

Graph y = 3 • 2x and y = –3 • 2x. Label the asymptote of each graph. Properties of Exponential Functions LESSON 8-2 Additional Examples Graph y = 3 • 2x and y = –3 • 2x. Label the asymptote of each graph. x y = 3 · 2x y = –3 · 2x –3 –2 –1 0 3 –3 1 6 –6 2 12 –12 3 24 –24 3 8 4 1 2 – Step 1: Make a table of values Step 2: Graph each function. y = 3 • 2x stretches y = 2x by a factor of 3. y = –3 • 2x reflects y = 3 • 2x in the x-axis.

Graph y = 6 and y = 6 – 2. 1 2 x 1 2 x–3

Ex 3: Evaluate each expression to four decimal places b. ℮4 c. ℮-2

Compound Interest Continually  

 

Example: Find the amount of money you will have if you invest $8500 at 7.75% interest for 9 years compounded continuously

Obj 2: Students will use definition of log    

 

Use definition of log and write in logarithmic form  

 

Ex 2: Evaluate log3 81. L8-2(p 450)  #2, 12, 18-26e, 51,52,53,54-66e