Chapter 6 Exponential Functions Big Ideas

The table represents ...

• Linear function, Dividing by 2

• Exponential function, Growth, Adding by 50

• Exponential function, Decay, Dividing by 2

• Exponential function, Decay, Adding 50

Which function is exponential?

• f(x)

• h(x)

• g(x)

What is the range of the function?

• -2 < y < 5

• 0 < y < infinity

• y > 4

• negative infinity < y < infinity

What type of function is

y = 2(0.75)^x

EXPLAIN

• Exponential Growth

• Linear

• Exponential Decay

• None of the Above

Compare the graph of f(x) = 3^x- 4 with the graph of f(x) = 3^x

• Graph shifted 4 units up

• Graph shifted 4 units down

• The graphs are the same

• Exponential Decay

Is this exponential growth or decay? EXPLAIN

• Exponential Growth

• Exponential Decay

• Neither

Evaluate the exponential function

f(x) = 3^x ; x = - 2

• -81

• -9

• 1/9

• -1/81

Evaluate
g(x) = 3(2)^x  ;  g(3) = ___

• 216

• 24

• 18

• 28

y = 12^x

^{Evaluate x = 2}

• 1/144

• 1/24

• 144

• 24

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x

• y = 15(1.35)^x

• y = 35(0.35)^x

• y = 35(1.15)^x