Consider the quadratic function: f(x) = x2 – 8x – 9 vertex: (-b/2a, f(-b/2a)) what is the vertex of the function?

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

Determine whether angle-angle-angle (aaa) is a valid means for establishing triangle congruence. if it is a valid criterion, explain why. if it is not valid, use geogebra to create a counterexample demonstrating that it doesn’t work and give an explanation. if you construct a counterexample, take a screenshot of your work, save it, and insert the image in the space below.

What is the positive solution to the equation 0 = -x2 + 2x + 12quadratic formula: x = -b/b²-4ac0-2+5202-20 ite10-1+2