14209an2.9-12

14209an2.9-12 - c circlecopyrt Kendra Kilmer January 20,...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

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

Unformatted text preview: c circlecopyrt Kendra Kilmer January 20, 2009 Section 2.3 - Quadratic Functions Definition: A function of the form is called a quadratic function , where a , b , and c are real numbers and a negationslash = 0. Example 1: Graph f ( x ) = 2 x 2 + 4 x + 1 without the use of a calculator. Definition: The vertex form of a quadratic function is where the vertex (lowest or highest point on the parabola) is the point Definition: The is the line of symmetry through the vertex. Example 2: Given f ( x ) = 4 x 2 + 16 x 8, a) What is the vertex form of the function? b) What does the graph of f ( x ) look like? c) What is the domain and range of f ( x ) ? 9 c circlecopyrt Kendra Kilmer January 20, 2009 Definition: The real zeros (or roots) of a function are its x-intercepts. To find the zeros of a quadratic function: 1. Factor, set each factor equal to zero, and solve for x . 2. Use the quadratic formula: 3. Graph the function on your calculator, hit 2nd TRACE, and then select option 2:zero.3....
View Full Document

This note was uploaded on 03/27/2012 for the course MATH 142 taught by Professor Drost during the Fall '08 term at Texas A&M.

Page1 / 4

14209an2.9-12 - c circlecopyrt Kendra Kilmer January 20,...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online