Math Formulas

Question 1

Discriminant formula

Answer 1

b^2 - 4ac

Question 2

how to find vertex

Answer 2

1) Find x-coordinate of vertex w/ -b/2a

2) plug that into original equation to find y at that value

Question 3

distance formula from (x₁, y₁) to (x₂, y₂)

Answer 3

√(x₂ - x₁)² + (y₂ - y₁)²

Question 4

midpoint formula from (x₁, y₁) to (x₂, y₂)

Answer 4

{ (x₁ + x₂)/2, (y₁ + y₂)/2 }