Completing the square

Question 1

What is a parabola?

Answer 1

A parabola is a curve where any point is at an equal distance from:

a fixed point (the focus ), and
a fixed straight line (the directrix )

Question 2

Given: y = (x + 4)^2 + 3, the vertex is

Answer 2

-4,3

Question 3

The solutions of a quadratic equation are known as the _____.

Answer 3

Roots

Question 4

What are the roots of a parabola?

Answer 4

Roots are also called x-intercepts or zeros.