According to the theory of genetics a certain cross of guinea pigs will result in red, black and white off-springs in the ratio of 8: 4: 4. find the probability that among 6 such off-springs 4 will be red, 1 black and 1 white.

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