226 Chapter 3 Graphing Linear Equations in Two Variables 5 4 y 1 21 5. 6. 5 4 y 1 2 1 2y 3 0 2x 4y 5 4 y 3 2 1 543 21 1 2 3 4 5 1 2 3 4 5 x Concept 1: Introduction to Slope 5 4 y 3 2 1 543 1 2 3 4 5 2 1 1 2 3 4 5 x 5 4 y 1 21 7. Determine the slope of the roof. 8. Determine the slope of the stairs. (See Example 1.) 9. Calculate the slope of the handrail. 10. Determine the slope of the treadmill 3 ft 5.5 ft 8 ft 1 ft 8 ft 24 ft 18 ft 10 ft Review Exercises For Exercises 2–6, find the x- and y-intercepts (if they exist).Then graph the line. 2. 3. 4. y 2 3x 5 2 x 3y 6 x 1 2 3 4 5 2 3 4 5 6 7 8 x 3 2 1 1 2 3 4 5 2 3 4 5 6 7 8 x 3 2 1 543 1 2 3 4 5 2 3 4 5 x 3 2 1 Concept 2: Slope Formula For Exercises 11–14, fill in the blank with the appropriate term: zero, negative, positive, or undefined. 11. The slope of a line parallel to the y-axis is . 12. The slope of a horizontal line is . 13. The slope of a line that rises from left to 14. The slope of a line that falls from left to right right is . is .
miller_beginning_intermediate_algebra_4e_ch1_3
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