The Behavior of the Quadratic Function y = 〖ax〗^2 + bx + c, with a, b, c ∈ R and a ≠ 0 According to the Variation of the Coefficient B

Select Volume / Issue:

• Volume 7,Issue 5, Sept. 2019

Year:

2019

Type of Publication:

Article

Keywords:

Demonstration, Parable, Quadratic Function, Coefficients, Parable Vertex

Authors:

Enoque da Silva Reis; Antonio Sales; Daiane Ferreira da Silva Rodrighero; Tatiane Ferreira da Silva; Bruno Luiz Silva Rodrighero

Journal:

IJISM

Volume:

7

Number:

5

Pages:

215-221

Month:

September

ISSN:

2347-9051

Abstract:

This paper seeks to demonstrate a particular property of the quadratic function. It describes the influence of each of the expression coefficients in y=ax^2+bx+c,with a,b,c ∈R and a ≠0 regarding the graph of the parable and, in particular, analysing the influence of the coefficient b, detailing the behavior of the vertex of any quadratic function according to the variation of b. We conclude that the vertex variation draws another quadratic function in which the resulting parable has concavity in the opposite direction and symmetry to the y axes.

Full text: IJISM-_867_FINAL.pdf [Bibtex]