Cara recorded the number of miles she walked each day for 12 days. Her data is listed below. Find the first and third quartiles of the data set. [math]\,\,\,\,\,[/math]3.8 [math]\,\,\,[/math] 2.1 [math]\,\,\,[/math] 3.5 [math]\,\,\,[/math] 4.2 [math]\,\,\,[/math]1.2 [math]\,\,\,[/math] 2.4 [math]\,\,\,[/math] 2.5 [math]\,\,\,[/math] 4.5 [math]\,\,\,[/math] 3.5 [math]\,\,\,[/math] 1.5 [math]\,\,\,[/math] 3.7 [math]\,\,\,[/math] 2.8

[list=1] [*]Order the data values from least to greatest. [*]Find [math]\text{Q}_1[/math], the first quartile. [*]Find [math]\text{Q}_3[/math], the third quartile. [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.

When Adam goes on a run, he typically averages a speed of 6 mph. The following graph shows how many miles he travels depending on how long he runs. Describe the graph’s slope and explain what this reveals about Adam’s running. Then describe the domain and explain why it is limited.

[list=1] [*]Describe the slope of the line. [*]Explain what the slope of the line reveals about Adam’s running. [*]Describe the domain. [*]Explain why the domain is limited. [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.

The graph of a linear function is shown. Use two points on the line and the formula [math]m=\frac{y_2-y_1}{x_2-x_1}[/math] to find its slope. Write the equation for this line using the point-slope form, [math]y-y_1 = m(x-x_1)[/math]. Then, rewrite the result in slope-intercept form, [math]y = mx + b[/math]. Use the slope-intercept form to determine the [math]y[/math]-intercept, [math]b[/math].

[list=1] [*]Determine the slope of the line. [*]Use the point-slope form to write the equation for this line. [*]Rewrite the equation in slope-intercept form. [*]Determine the [math]y[/math]-intercept of the line. [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.