Chapter 9.2 & 5.1-5.3 Flashcards
What is the rule for the direction of opening of a y=a(x-h)^2+k equation?
It opens up if a>0
It opens down if a<0
What is the vertex of a y=a(x-h)^2+k equation?
(h,k)
What is the axis of symmetry for a y=a(x-h)^2 +k equation?
x=h
What is the focus of a y=a(x-h)^2+k equation?
(h,k+1/4a)
What is the directrix of a y=a(x-h)^2+k equation?
y=k-1/4a
What is the length of the Latus Kectum in a y=a(x-h)^2+k equation?
|1/a| units
What is the rule for the direction of opening in a x=a(y-k)^2+h equation?
Right a>0
Left a<0
What is the vertex for a x=a(y-k)^2+h equation?
(h,k)
What is the axis of symmetry in a x=a(y-k)^2+h equation?
y=k
What is the focus in a x=a(y-k)^2+h equation?
(h+1/4a, k)
What is the directrix in a x=a(y-k)^2+h equation?
x=h-1/4a
What is the length of the Latus Kectum in a x=a(y-k)^2+h equation?
|1/a| units
What is a polynomial?
An equation arhat had a positive integer (while number) exponent
How do you find the degree of a polynomial?
You add together the heights degrees of exponents