There are two trees in a yard. the taller x feet tall, and casts a shadow that is 37 feet long. the small tree is 14.5 feet tall, and casts a shadow that is 22.7 feet long. write and solve a proportion to find the height of taller tree

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth