Vertex! Parabolas! Flashcards
1
Q
What is vertex form?
A
a(x-h)^2+k
1
Q
What is the vertex?
A
(h,k) (x,y)
2
Q
What is standard form?
A
ax^2+bx+c
3
Q
How do you find h?
A
By plugging in h for x?
4
Q
If a is negative what does that mean about the parabola?
A
The parabola will open down, h,k = the maximum
5
Q
If a is positive what does that mean about the parabola?
A
The parabola will open up h,k = minimum
6
Q
if a is a bigger number what does that mean about the parabola? (closer to 0 =? farther away =?)
A
Bigger number = skinnier graph
7
Q
if a is a smaller number what does that mean about the parabola? (closer to 0 =? farther away =?)
A
Closer to 0 = wider graph. The opposite of jeans.
8
Q
What is h? (the way you find it?)
A
h=-b/2a
9
Q
A
