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Unformatted text preview: Section 4.3 Absolute Value Equations 385 Version: Fall 2007 4.3 Exercises For each of the equations in Exercises 1- 4 , perform each of the following tasks. i. Set up a coordinate system on a sheet of graph paper. Label and scale each axis. ii. Sketch the graph of each side of the equation without the aid of a calcula- tor. Label each graph with its equa- tion. iii. Shade the solution of the equation on the x-axis (if any) as shown in Figure 5 (read "Expectations") in the narrative. That is, drop dashed lines from the points of intersection to the axis, then shade and label the solu- tion set on the x-axis. 1. | x | = − 2 2. | x | = 0 3. | x | = 3 4. | x | = 2 For each of the equations in Exercises 5- 8 , perform each of the following tasks. i. Load each side of the equation into the Y= menu of your calculator. Ad- just the viewing window so that all points of intersection of the two graphs are visible in the viewing window. ii. Copy the image in your viewing screen onto your homework paper. Label each axis and scale each axis with xmin, xmax, ymin, and ymax. La- bel each graph with its equation. iii. Use the intersect utility in the CALC menu to determine the points of in- Copyrighted material. See: http://msenux.redwoods.edu/IntAlgText/ 1 tersection. Shade and label each so- lution as shown in Figure 5 (read "Ex- pectations") in the narrative. That is, drop dashed lines from the points of intersection to the axis, then shade and label the solution set on the x- axis....
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