Equation Grapher
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Topics
- Graphing
- Polynomials
- Curves
Description
Learn about graphing polynomials. The shape of the curve changes as the constants are adjusted. View the curves for the individual terms (e.g. y=bx ) to see how they add to generate the polynomial curve.
Sample Learning Goals
- Sketch how the graph of a line changes as the coefficient and constant vary.
- Predict how a line graph will look given an equation in other forms.
- Sketch how a parabola changes as coefficients and constant vary.
- Predict how a parabolic graph will look given equations in other forms.
Standards Alignment
Common Core - Math
8.F.A.3
Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line.
HSF-IF.C.7
Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.*
Version 2.02
Teacher Tips
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Overview of sim controls, model simplifications, and insights into student thinking ( PDF ). |
Teacher-Submitted Activities
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Authors | Level | Type | Subject |
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| Equation Grapher: Sketching Linear and Parabolic Graphs (Inquiry Based) |
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Trish Loeblein | HS | Lab | Mathematics |
| Equation Grapher: Stretch Armstrong |
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beki toussaint | HS | Lab | Mathematics | |
| How do PhET simulations fit in my middle school program? |
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Sarah Borenstein | MS | Other | Biology Physics Earth Science Chemistry |
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| Alignment of PhET sims with NGSS |
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Trish Loeblein | HS | Other | Physics Earth Science Chemistry Biology |
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| CCSS Math Alignment with Sims |
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Amanda McGarry | MS HS K-5 |
Other | Mathematics | |
| MS and HS TEK to Sim Alignment | Elyse Zimmer | HS MS |
Other | Chemistry Physics Biology |
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| EQUATION GRAPHER – PHET: FUNÇÕES POLINOMIAIS | Rannyelly Rodrigues de Oliveira e Francisco Régis Vieira Alves | HS | Guided | Mathematics | ||
| Plano Cartesiano e Par Ordenado | Eugeniano Brito Martins | K-5 | Lab Discuss HW |
Mathematics | ||
| Kinematics | Wang Yunhe | HS | Lab | Physics | ||
| Flexible Quadratics | Andrew Marshallsay | MS | Lab | |||
| Linear and Quadratic Functions: analysis using graphing | unkown unknown | HS | HW | Mathematics | ||
| Equation Grapher: Transformations of graphs | Stacy Larson | HS | Lab | Mathematics | ||
| 2차 방정식 그래프 작성기 SIM 사용설명서 | 이화국(Wha Kuk Lee) | HS MS |
HW CQs Demo |
Physics Chemistry Mathematics |
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| Coeficientes e raízes das Funções do 1° e 2° Grau | Thamires Silva Aquino de Souza e Francisco Régis Vieira Alves | MS | Guided | Mathematics | ||
| Uma proposta de estudo de gráficos de equações do segundo grau | Ana Carla Pimentel Paiva; Francisco Régia Vieira Alves | MS | Guided | Mathematics | ||
| Função Afim | Ederson Marcelino Silva | HS UG-Intro |
Guided | Mathematics | ||
| Parabola | juan francisco gonzalez rico | MS | HW | Mathematics |
| Windows | Macintosh | Linux |
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Microsoft Windows XP/Vista/7/8.1/10 Macromedia Flash 9 or later
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OS X 10.9.5 or later Macromedia Flash 9 or later
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Macromedia Flash 9 or later
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| Design Team | Third-party Libraries | Thanks To |
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