An engineer is drawing a scale drawing of a 4 meter tall boiler. If the scale is 1cm = 2m, how many centimeters tall should it be in the drawing?
cm

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