Which statement correctly identifies a local minimum of the graphed function? Over the interval [–2, –1], the local minimum is 2.2.
Over the interval [0.5, 2], the local minimum is 4.
Over the interval [–3, –2], the local minimum is 0.
Over the interval [–1, 0.5], the local minimum is 1.

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