X^2+9x-4=0 solve by quadratic formula. show all work

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?

X-10/4 when x = –18 a 7 b –2 c –7 d 2