The parabolas defined by the equations y = -x^2 - x + 1 and y = x^2 - 3x - 3 intersect at points (a,b) and (c,d), where c >= a. What is c - a? Express your answer as a common fraction.

Guest Feb 26, 2022

#1**+1 **

Note that c and a are the 'x' coordinates....

All you need to do is equate the two given parabolic equations, simplify and then use the Quadratic Formula to solve for the x's ( c and a )

-x^2 - x + 1 = x^2 - 3x - 3 <====== take it away !

ElectricPavlov Feb 26, 2022