Algebra Ii Unit V: Quadratics Unit Notes Packet Functions Worksheet Page 3
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235.1.1: Graphing Quadratic Functions
Warm-up: Multiply the following binomials using the FOIL method.
A. (x + 3)(x + 5)
B. (x – 5)(x + 7)
C. (2x – 3)(-3x – 8)
Vocabulary:
Polynomial:
Quadratic:
Quadratic Function:
Parabola:
Notes: Graphing Quadratic Functions (Parabolas)
There are 2 forms of quadratic functions which we will learn. (Quadratic
functions have graphs called parabolas.)
2
Standard form:
y = ax
+ bx + c
2
Vertex form:
y = a(x – h)
+ k
Today we will investigate standard form, and next lesson we will cover vertex
form.
3
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