The first six steps of the derivation of the Quadratic Formula are listed below. (1. ax2 + bx +c=0
2. x2 + x + =
3. x2 + x + = 0
4. x? + x=-
5. x2
6. (x + )2
+
492
52-400
=
402

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.