Between which two ordered pairs does the graph of f(x) = x2 + x – 9 cross the negative x-axis? quadratic formula: x =

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Icould really use some with this question.

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form