What is the domain and range of this function 5 0 5

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: −1)2 , (−1,1) ← = (−1)2 , y = x2 9 = 4 x2 (x,y) Unit 1 – Day 3: GRAPHING y = ax exercise: Graph 2 Page 2 of 4 y = 3x2 Graph y = 1 x2 2 y 15 15 10 10 5 −5 y 5 −5 5x 0 example: For the function y = −x2: 5x 0 y a= • Complete the table of values. x x2 −x2 = y • Use the table to draw the graph of this function. −3 9 −2 4 −1 1 0 0 1 1 2 4 3 9 5 • Compare this function’s graph to the basic graph. • What are the coordinates of the graph’s vertex? • What is the equation of graph’s axis of symmetry? • What is the domain and range of this function? −5 0 −5 5x Unit 1 – Day 3: GRAPHING y = ax exercise: Graph 2 Page 3 of 4 y = −2x2 Graph y −5 y = − 1 x2 2 y 0 −5 5x 0 −5 −10 −15 SUMMARY: −5 −10 5x −15 To draw the graph of y = ax2 or When a > 0, (a is positive): y = x2 a When a < 0, (a is negative): • The parabola opens upward. • The parabola opens downward; the basic graph is vertically reflected about the x-axis. • If a > 1, the basic graph is vertically expanded (stretched) away from the x-axis by a factor of a (by a times). • If a < −1, the basic grap...
View Full Document

This document was uploaded on 02/16/2014 for the course MATH Pre-Calcul at Holy Cross Regional High School.

Ask a homework question - tutors are online