1. Also: Study interval notation
Notes 5.3: Quadratic Equation Forms
Parent Function
Standard Form
Vertex Form
Last lesson we studied Quadratics using the Parent Function and Vertex form (shifts). Today we will focus on the Standard form!
Also: Study interval notation

2. Standard form: y = ax2 + bx + cL I P V O C A B
Standard form: y = ax2 + bx + c
If “a” is positive, the x
parabola opens _______
If “a” is negative, the parabola opens _______
y intercept: where the parabola crosses the y axis. To find it from the equation, substitute ___ for ___ and solve for _____
The vertex is the __________
point of the parabola.
To find the x-coordinate:
To find the y-coordinate:
S/R/Z refers to :
____________________,
_________, __________
These are the x-intercepts, so where y = _______.
The Axis of symmetry
is a fold line and
has an equation:
Domain: Possible __ values
Range: Possible __ values

3. Examples Ways to write domain and range
Interval Notation
Inequalities
The domain is greater than -3 and less than or equal to 4
The domain is greater than 7
The range is less than or equal to 4
The range is all real numbers
The domain is greater than -3 and less than or equal to 4 The domain is greater than 7 The range is less than or equal to 4 The range is all real numbers