Answer:
612
Step-by-step explanation:
9 x 68 = 612
eqaution 1: Proportinal
eqaution 2:Proportinal
x=2/3, x=3/2
6x^2-13x=-6
6x^2-13x+6=0
6x^2-4x-9x+6=0
2x*(3x-2)-3(3x-2)=0
(3x-2)8(2x-3)=0
3x-2=0
2x-3=0
x=2/3
x=3/2
root (-20,0) vertical intercept (0,4)