Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
2. Graphs of Equations
Graphs and Coordinates
3:54 minutes
Problem 2
Textbook Question
Textbook QuestionGraph each equation in Exercises 1–4. Let x= -3, -2. -1, 0, 1, 2 and 3. y = x^2-3
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Quadratic Functions
A quadratic function is a polynomial function of degree two, typically expressed in the form y = ax^2 + bx + c. The graph of a quadratic function is a parabola, which can open upwards or downwards depending on the sign of the coefficient 'a'. Understanding the shape and properties of parabolas is essential for graphing quadratic equations.
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Evaluating Functions
Evaluating a function involves substituting specific values for the variable(s) in the function's equation. In this case, substituting the given x-values (-3, -2, -1, 0, 1, 2, 3) into the equation y = x^2 - 3 allows us to calculate the corresponding y-values. This process is crucial for plotting points on the graph.
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Graphing Points
Graphing points involves plotting the calculated (x, y) pairs on a coordinate plane. Each point represents a solution to the equation, and connecting these points helps visualize the function's behavior. Understanding how to accurately plot points and interpret the resulting graph is vital for analyzing the function's characteristics.
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