We will do examples of finding the mean, median, mode and midrange. We will discuss which measure is the best in a variety of situations.

Test on Topic 8 Quadratic Functions. We graphed parabolas in standard and vertex form.

We will review the measures of center. We will identify how to calculate and interpret the standard deviation, range, and interquartile range of a set of data. Examples will be completed.

We will determine the values of the mean, median, midrange, and mode of sets of data. More importantly, we will then choose the appropriate one of these values for a given set of data.

8-5 Linear, Exponential, and Quadratic Models – We learned to determine which model: linear, exponential, or quadratic would best fit a set of data. Then we used fitted functions to solve problems in the context of data. Linear, quadratic, and exponential functions are differentiated by their average rates of change over different intervals. A linear function models a relationship between x and y in which the differences between successive y-values are constant. A quadratic function models a relationship in which the second differences, or the difference between the first differences, are constant. An exponential function models a relationship where the ratios of consecutive y-values are constant. Review for Test on Topic 8 Quadratic Functions.

We will study measures of center: mean, median, mode, and midrange. We will calculate these values, but more importantly, we will determine which are appropriate in describing a particular set of data.

We will do examples to determine which measure of center is appropriate for a given set of data,

8-4 Modeling with Quadratic Functions – We used quadratic functions to find the area of a rectangular pool and deck. Then we learned to use the vertical motion model to write an equation for the height of an object after an initial velocity. We used the formula –b/2a to find the number of seconds for the object to reach its maximum height. Then we substituted the number of seconds into the original equation to find the maximum height.

We will look at examples of histograms, stem plots, and circle graphs. We will do examples using the guidelines for the drawing of these graphs.

We will learn to apply the appropriate measure of center to a set of data. We will find all four: mean, median, mode, and midrange. We will then decide which are appropriate for specific data sets.