Parabolas 1
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Lesson Summary:
In this lesson, we explore the world of parabolas and how to graph them. Using different quadratic functions, we learn how to plot the ordered pairs and connect them to form a parabola. We also discover that all parabolas have an axis of symmetry and a vertex point, which is either a minimum or maximum point. Additionally, we learn how to identify quadratic functions in the form of f(x) = ax² + bx + c and how to use them to graph parabolas. By the end of this lesson, you will have a solid understanding of the basics of parabolas and how to graph them.
Lesson Description:
Graphing Parabolas Part 1;
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- What is a parabola and what does it look like?
- How do you graph a parabola?
- How do you find the vertex point and axis of symmetry for a parabola?
- How do you know what points to pick to put into the equation to graph a quadratic equation to make a parabola?
- How do you graph y = x^2?
- How do you graph f(x) = x^2 - 4?
- How do you graph y = x^2 + 2?
- How do you graph f(x) = x^2 - 6?
- What does the number added or subtracted at the end of a quadratic function do to the graph of a parabola?
- How do you know whether a parabola will open upward or downward?
- What is a vertex point of a parabola?
- What is an axis of symmetry for a parabola?
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Staff Review
This lesson picks up from where the basic introduction lesson left off and the first two parabolas graphed are the same that were graphed in the introduction. There are two more parabolas graphed in this video too. For more advanced graphing, go on to the next lesson in this series. Also, all of these parabolas are drawn on the same axes so you can see what adding or subtracting values from the function do to the graph.
