A parabola has a focus of F(-6,6) and a directrix of I = -8. P(x, y) represents any point on the parabola, while D(-8, y) represents any point on the directrix.
The following is Marcel's work.
Step 1: FP = DP
Step 2: (-(-6))2 + (y – 6)2 = V(r-(-8))2 + (y – y)2
Step 3: x2 + 12x +36 + y2 – 12y + 36 = 22 + 163 +64
Step 4: y2 - 12y + 8 = 40
Step 5: -y– 3y + 2 = 1
Identify each incorrect step.
Select all answer choices that both state an incorrect step and explain why it is incorrect.
If there is only one incorrect step, select "only" and the answer choice that states and explains the incorrect step.

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

rotation point l

step-by-step explanation: