7.
ow many ways can the same 5-question true/false quiz be
swered if it is okay to leave questions unanswered? (hint: you now
have 3 choices for each question.)

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas 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