Outcomes
        In this lesson you will 
        - Explore a real-world situation involving the cooling behaviour of a liquid. 
- Determine the equation of the function that models this real-world situation. 
- Work with transformations that are vertical slides of the original graph. 
By the end of this section you should be able to: 
        - Model real-world phenomena using exponential functions. 
- Sketch graphs from descriptions, tables, and collect data. 
- Describe and translate between graphical, tabular, written, and symbolic representations of exponential and logarithmic relationships. 
- Demonstrate an understanding of how parameter changes affect the graphs of exponential functions. 
- Analyze scatter plots, and determine and apply the equations for the curves of best fit, using appropriate technology. 
- Demonstrate an understanding of the role of real numbers in exponential and logarithmic expressions and equations. 
- Analyze and describe the characteristics of exponential and logarithmic functions.
Prerequisites
        To be successful in this lesson, it would be helpful to know the following: 
        
        - How to collect data from an investigation and record it in tabular form. 
- How to graph a function using a table of values. 
- How to use graphing technology to draw the graphs of functions. 
- How to use the regression features on your graphing calculator.