PARCC Grade 6 Math Practice Test Questions
1. The table below shows changes in the area of several trapezoids as the lengths of the bases, b1 and b2, remain the same and the height, h, changes. Which formula best represents the relationship between A, the areas of these trapezoids, and h, their heights?
1. B: The formula for the area of trapezoids is not necessarily needed here to do this problem. Since the relationship between the area, A, and the height, h, can be seen in the chart, looking at the third and fourth columns to see if there is a pattern will show a relationship between the variables. Each value in the area column is equal to 6 times the value in the height column. So, we get A=6h.