Please answer the following

The figure to the right shows the distance-time graph for a muscle car accelerating AS 650 Q from a standstill. Use the information in the figure to answer parts (a) and (b). The table below lists the coordinates of the points. Point Q1 Q3 Q4 P Distance (m) 325 Coordinates (6 4, 121) (12.5,314) (18,549) (18.7,584) (20,650) 10 20 Elapsed time (sec) (a) Estimate the slopes of the secants PQ,, PQ2, PQ3, and PQ4. Determine the order from least to greatest of the slopes. Determine the correct units for these slopes. The slope of secant PQ, is approximately (Round to the nearest integer as needed.)