Alg2C 8D1 Notes
Chapter 8 - Quadratics day 1
Quadratic: A U-shaped graph, which is called a parabola.
The equation has to be in the form
Ex 1) Determine if the graphs are linear, quadratic or
neither. Find the domain and range of each graph.
A)
B)
Type of Graph:___________ Type of Graph:___________
Domain:____________
Domain:_______________
Range:_____________
Range:________________
C)
D)
Type of Graph:___________
Type of Graph:___________
Domain:____________
Domain:_______________
Range:_____________
Range:________________
Alg2C 8D1 Notes
Standard form of a quadratic:
if a>0 (positive)
if a<0 (negative)
Ex 2) Write the following quadratics in standard form.
A)
f(x) = -2x(x-1)+2(x-3)
B)
f(x) = (x-2)(2x-3)
f(x)=____________
f(x)=____________
Opens:__________
Opens:__________
Max/Min:_________
Max/Min:_________
Vertex of a parabola: Highest or lowest point
of a parabola.
Axis of symmetry - The vertical line that goes
through the vertex of the parabola, so that the
graph is symmetric over the line.
Alg2C 8D1 Notes
Ex 3) Given the graph, answer the following .
Opens ________
maximum or minimum?_________
y-intercept ______
x-intercepts
___
vertex
axis of symmetry
domain:
range:
___
Ex 4) Given the graph, answer the following .
Opens ________
maximum or minimum?_________
y-intercept ______
x-intercepts
___
vertex
axis of symmetry
domain:
range:
__