Download presentation

Published byImogen Glenn Modified over 4 years ago

1
**Precalculus Section 1.7 Define and graph quadratic functions**

Any function that can be written in the form: y = ax2 +bx + c is called a quadratic function. It’s graph is called a parabola. Consider the graphs of the quadratic functions: y = x2 y = 2x2 y = -2x2 y = x2 – x – 6

2
The graph of y = ax2 +bx + c has an axis of symmetry of x = -b/2a, roots which are the solution of ax2 +bx + c = 0, a y-intercept of c, and the x value of the vertex is x = -b/2a. If a>0 the parabola opens up, if a<0 the parabola opens down. Find the x and y intercepts, axis of symmetry, the vertex, and sketch the graph of y = -x2 + 4x - 3

3
Graph f(x) = 2x2 + 5x - 12

4
**Vertex form of a quadratic function y = a(x-h)2 + k**

(h,k) is the vertex, x=h is the equation of the axis of symmetry. Find the vertex, intercepts, axis, and sketch the graph of y = -1(x+2)2 + 3

5
Graph f(x) = 2(x-4)2 - 5

6
**Find the equation of the parabola with a vertex of (4,8) and passing through the point (2,6).**

7
Assignment Page 41 Problems 2,4,7,12,14,16,18,21,22,29,32 38 e.c.

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