Section 3.3 Slope of a Line and Rate of Change 227 For Exercises 15–23, determine if the slope is positive, negative, zero, or undefined. 15. 16. 17. 5 4 y 1 1 5 4 y 1 1 18. 19. 20. 5 4 y 1 1 5 4 y 1 1 21. 22. 23. 5 4 y 1 1 5 4 y 1 1 5 4 y 1 21 5 4 y 1 1 5 4 y 1 1 For Exercises 24–32, determine the slope by using the slope formula and any two points on the line. Check your answer by drawing a right triangle, where appropriate, and labeling the “rise” and “run.” 24. 25. 26. 5 4 y 1 1 5 4 y 1 1 27. 28. 29. 1 2 3 4 5 5 4 y 1 1 5 4 y 1 1 2 3 4 5 x 3 2 1 2 3 4 5 54 321 5 4 y 1 1 2 3 4 5 x 3 2 1 2 3 4 5 54 321 5 4 y 1 1 2 3 4 5 x 3 2 54 321 1 2 3 4 5 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 54 321 543 1 2 3 4 5 2 3 4 5 x 3 2 1 1 2 3 4 5 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 54 321 1 2 3 4 5 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 54 321 1 2 3 4 5 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 1 2 3 4 5 54 321 2 3 4 5 x 3 2 54 321
miller_beginning_intermediate_algebra_4e_ch1_3
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