These two triangles can be shown to be congruent using which transformation?
A) reflection over the x-axis
B) reflection over the y-axis
C) translation right 4 units
D) rotation of 180°

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