SWBAT Describe and Evaluate Functions Given an Equation

Linear, exponential, or neither?

• Linear

• Exponential

• Neither

A population of amoebas in a petri dish will triple in size every 20 minutes. At the start of an experiment the population is 800. Write a function to model this relationship with y representing the total population, and x as the number of 20 minute periods.

The following equation represents. EXPLAIN

• Exponential Growth

• Exponential Decay

• Neither

Is this exponential growth or decay? EXPLAIN

• Exponential Growth

• Exponential Decay

• Neither

What relationship is demonstrated by this table of values? EXPLAIN

• Linear

• Exponential Growth

• Neither

• Exponential Decay

• Linear Growth

Does the graph represent growth, decay, linear or none?

• Exponential Growth

• Exponential Decay

• Linear

• None

What type of function is y = 3^x?

• Exponential Growth

• Exponential Decay

• Linear

• None of the above

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

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