5.1 Echinoderm First Cleavage. 5.2 Echinoderm Second Cleavage.
alg 2 sec. 5.1 and 5.2 outline...
Transcript of alg 2 sec. 5.1 and 5.2 outline...
alg 2 sec. 5.1 and 5.2 outline notes.notebook September 25, 2012
Tonight's Homework:Pages 6 9 #19, 23, 27, 33, 37, 44 46, 55, 57
Pages 15 – 17 #9, 11, 17, 27, 29, 37, 39, 51, 53Sec. 1.1 Graph Quadratic Functions in Standard Form*Graph*Finding the min or max value*Multistep problem
Sec. 1.2 Graph Quadratic Functions in Vertex or Intercept Form*Graph*Using a model*Changing the form of the equation
Standard Form: f(x) = ax2 + bx + c
Direction: a > 0 _______________ a < 0 ______________
The Axis of Symmetry is
The vertex is
The yintercept is c. So, the point is (0, c) is on the parabola.
Compared to the graph of f(x) = x2 , a graph is narrower if |a| > 1 and wider if |a| < 1
y=x2Parent Function:
y=2x2
y= 1 x2
2
y=x2
|a| < 1wide|a| > 1narrow|a| = 1same
widths:
Compare the graphs.(wider, narrower, same)
1) f(x) =
Graph, label the vertex, and axis of symmetry.
alg 2 sec. 5.1 and 5.2 outline notes.notebook September 25, 2012
2) 6
Vertex Form: f(x) = a(x h)2 + k
The vertex is (h, k).
The axis of symmetry is x = h.
The graph opens up if a > 0 and down if a < 0.
alg 2 sec. 5.1 and 5.2 outline notes.notebook September 25, 2012
alg 2 sec. 5.1 and 5.2 outline notes.notebook September 25, 2012
Intercept Form: f(x) = a(x p)(x q)
The xintercepts are p and q
The axis of symmetry is x = p + q 2
The graph opens up if a> 0 and opens down if a < 0.
alg 2 sec. 5.1 and 5.2 outline notes.notebook September 25, 2012
The woodland jumping mouse can hop surprisingly long distances given its small size. A relatively long hop can be modeled by
y = 2 x (x6) 9
where x and y are measured in feet.
1) How far can a woodland jumping mouse hop?
2) How high can it hop?