8. Math on the Spot Estimate the length of an edge of a child's alphabet block (a cube) that has a weight of 1.875 oz and is made from maple with a weight density of 0.35 oz/in. Use a cubic function to model the situation, and graph the function using calculated values of the function. Then use the graph to obtain the indicated estimate to the nearest 0.25 inch. Weight (oz) 4 W 0.5 1 1.5 2 Length (in.)