a runner is working out on a straight track. the graph to the right shows the runners distance y in hundreds…

a runner is working out on a straight track. the graph to the right shows the runners distance y in hundreds of feet from the starting line after t minutes. (a) estimate the turning points. (b) interpret each turning point. (a) choose the correct answer below. select all that apply. a. (1.0,0.0) b. (4.8,0.0) c. (2.9,1.3) d. (4.9,1.6) e. (1.6,4.9) f. (4.2,4.9) g. (1.3,2.9) h. (4.9,4.2) (b) choose the correct answer below. a. each turning point represents when the runner is going uphill or downhill. b. each turning point represents when the runner changes speed. c. each turning point represents when the runner changes direction. d. each turning point represents when the runner reaches the starting line.

a runner is working out on a straight track. the graph to the right shows the runners distance y in hundreds of feet from the starting line after t minutes. (a) estimate the turning points. (b) interpret each turning point. (a) choose the correct answer below. select all that apply. a. (1.0,0.0) b. (4.8,0.0) c. (2.9,1.3) d. (4.9,1.6) e. (1.6,4.9) f. (4.2,4.9) g. (1.3,2.9) h. (4.9,4.2) (b) choose the correct answer below. a. each turning point represents when the runner is going uphill or downhill. b. each turning point represents when the runner changes speed. c. each turning point represents when the runner changes direction. d. each turning point represents when the runner reaches the starting line.

Answer

Explanation:

Step1: Identify turning - points on the graph

Turning points are points where the graph changes from increasing to decreasing or vice - versa. By observing the graph, the turning points are the points where the slope of the graph changes sign. The points (1.6,4.9), (2.9,1.3), and (4.2,4.9) are such points.

Step2: Interpret turning - points

In the context of the runner's distance from the starting line over time, a change in the direction of the graph (from increasing to decreasing or vice - versa) means a change in the direction of the runner. When the runner changes direction, the distance from the starting line starts to change in the opposite way.

Answer:

(a) C. (2.9,1.3), E. (1.6,4.9), F. (4.2,4.9) (b) C. Each turning point represents when the runner changes direction.