Example 1
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 |
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[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. |
Example 1
Find the vertical distance between points [math]A[/math] and [math]E[/math]. |
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[list=1] [*]Identify the [math]y[/math]-coordinate of both points. [*]Subtract the values of the [math]y[/math]-coordinates. [*]Take the absolute value of the difference. [/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. |
Example 1
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]. |
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[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. |