Download Section 10.1

Algebra 2CP
Day 76
10.1 Introduction to
Conic Sections

Daily Openers

Go over and collect homework
10.1 Introduction to Conic Sections
conic section – a curve formed by slicing a double cone with a plane
– picture on page 547
Graphing Conics on Calculator
 Solve for y and plot points from the table
 If you use a square root, it creates two separate equations, ±
Ex. Graph, identify the conic, describes lines of symmetry, and find domain/range:
2
2
(a) x  y  9
(b) 4 x 2  4 y 2  100
(c) x 2  3 y  12
(d) 4 x  y 2  16
(e) 49 x 2  16 y 2  784
(f) 4 x 2  9 y 2  25
(g) 4 x 2  y 2  16
(h)
y2 
x2
1
4
Ex. Find the center and the intercepts for the above graphs.

What are the patterns that you see in the equations that can help identify the conics?

Can you identify the conic section without graphing it?
Homework – pages 550-552 #1-15 odd, 17-28 all, 40-43 all
Daily Openers – Online Warmups or
1.–5. page 544 #1, 4, 6, 11, 18, 20