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Vertex: (−5, 2) Axis of Sym.: x = −5. Vertex: (−2, −1) Axis of Sym.: x = −2. Create your own worksheets like this one with Infinite Algebra 2. Free trial available at KutaSoftware.com.
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Use the information provided to write the vertex form equation of each parabola.
- 37KB
- 4
Graphing and Properties of Parabolas Date_____ Period____ Identify the vertex, axis of symmetry, and direction of opening of each. 1) y = 2(x + 10)2 + 1 Vertex: (−10 , 1) Axis of Sym.: x = −10 Opens: Up 2) y = − 1 3 (x − 7)2 + 1 Vertex: (7, 1) Axis of Sym.: x = 7 Opens: Down 3) y = − 1 3 x2 + 16 3 x − 46 3 Vertex: (8, 6) Axis of Sym ...
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Get full access to all Solution Steps for any math problem ... For a Free Trial, Download The App. Parabola Parabola Vertex Worksheets - Download free PDFs ...
Sal rewrites a quadratic equation in vertex form and shows how it reveals the vertex of the corresponding parabola. Created by Sal Khan and Monterey Institute for Technology and Education.
- 7 min
- Sal Khan,Monterey Institute for Technology and Education
- Good question. It is not a parabola anymore if a = 0. It is just a horizonal line because when you multiply the x by zero it is eliminated and your...
- x was divisible by -2 as well as the rest of the numbers on that side of the equal sign. So, the -4 is the result of dividing the 8 on the right en...
- Look by using the completing the square method we essentially turn the equation into vertex form which I suppose you know. Then the result seems as...
- I asked myself the same question, as Sal seems to have more than a little contempt for the "mindless application" method ;p 'Sokay! I do understand...
- Yes, it should be "always non-negative".
- Well, let's look at 4:22. y = -2(x-2)² + 16 So, how does this tell us where the vertex is? Well, the vertex will be at the point where y is a minim...
- You're right, maybe you did it the way I did. However, he did the problem differently, since he factored the 8 out, it changed how he had to solve...
Sal rewrites the equation y=-5x^2-20x+15 in vertex form (by completing the square) in order to identify the vertex of the corresponding parabola. Created by Sal Khan and Monterey Institute for Technology and Education.
- 6 min
- Sal Khan,Monterey Institute for Technology and Education
About the vertex, the vertex is determined by (x-h)² and k. The x value that makes x-h=0 will be the x-coordinate of the vertex. K will be the y-coordinate of the vertex.
- 3 min
- Sal Khan
