Download presentation

Presentation is loading. Please wait.

Published byCuthbert Chandler Modified over 5 years ago

1
Introduction to Parabolas SPI 3103.3.11 Graph conic sections (circles, parabolas, ellipses and hyperbolas) and understand the relationship between the standard form and the key characteristics of the graph.

2
Types of Conic Sections Parabola Circle Ellipse Hyperbola

3
Equation of a Parabola The general form for the equation of a parabola is y – k = a(x – h) 2. The equation may also be written in the form y = a(x – h) 2 + k.

4
Important Information About Parabolas The vertex of a parabola is the ordered pair (h, k). Vertex

5
Important Information About Parabolas The axis of symmetry (axis) is the line x = h. Axis of Symmetry

6
Important Information About Parabolas If a > 0, the parabola will open upward. If a < 0, the parabola will open downward.

7
Important Information About Parabolas The larger a, the narrower the parabola will be.

8
Important Information About Parabolas To find the y-intercept of a parabola, substitute 0 for x; then solve the equation for y.

9
Practice With Parabolas

10
Practice with Parabolas For the following problems, give a.) the vertex b.) the axis of symmetry c.) the direction the parabola opens

11
Practice with Parabolas 1. y – 11 = 2(x + 7) 2 2. y + 7 = –(x – 5) 2 3. y = 5(x + 10) 2

12
Practice with Parabolas 4. y – 7 = –8x 2 5. y = 15x 2 6. y = –x 2

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google