day1 vertex.notebook
February 04, 2014
Vertex Form of a Parabola (3.1)
day 1
Vertex Form of a Parabola (3.1)
day 1
How about this one?
What does this look like to you?
these are called parabolas
they come from quadratic relations
parabolas are everywhere, man
Vertex Form of a Parabola (3.1)
grab a graphing calculator
day 1
Vertex Form of a Parabola (3.1)
day 1
ex2: Use the calculator to sketch
ex1: graph on the calculator and sketch in your binder
y
5
4
3
2
1
x
­5
­4
­3
­2
­1
0
­1
1
2
3
4
5
an equation with degree 2 is called a quadratic
­2
­3
the graph of a 2nd degree function is called a parabola
­4
the key point on a parabola is the vertex
­5
Vertex Form of a Parabola (3.1)
ex3: Use the calculator to sketch
day 1
Vertex Form of a Parabola (3.1)
day 1
ex4: Use the calculator to sketch
what happens when we change the number in front of the x?
what happens when we change the number at the end?
1
day1 vertex.notebook
February 04, 2014
Vertex Form of a Parabola (3.1)
day 1
ex5: Use the calculator to sketch
Vertex Form of a Parabola (3.1)
day 1
ex6: without the calculator, sketch and describe
b)
a)
what happens when we change the number in the brackets?
3ab
Vertex Form of a Parabola (3.1)
day 1
Vertex Form of a Parabola (3.1)
day 1
Vertex Form of a Parabola
homework:
wide or
skinny
opens up
or down
slide up
or down
p157#1bc, 2bc, 4bc, 6acdf
sideways
shift
vertex is (p, q)
describe axis, D&R, etc
write equation from graph
write equation from v&pt
problems
2