SOLUTION: Hello I am graphing the vertex and axis of symmetry and I understand how to find it, but how about when the vertex is a fraction? How would I graph the vertex? (if x and y are in
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Question 1135161: Hello I am graphing the vertex and axis of symmetry and I understand how to find it, but how about when the vertex is a fraction? How would I graph the vertex? (if x and y are in fraction form)
Found 2 solutions by greenestamps, MathLover1:
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
I don't see a problem... fractions graph the same way as whole numbers....
Perhaps you can re-post your question, being more specific about why you don't understand how to do what you are doing.
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You ask what if the coordinates of the vertex were (1/2,9/4).
The x coordinate, 1/2, is halfway between 0 and 1; the y coordinate, 9/4 = 2 1/4, is 1/4 of the way from 2 to 3. If you are graphing by hand, any good approximation to those positions should be acceptable.
Perhaps you are doing the graphing on a computer using a graphing tool. If so, and the coordinates of the vertex are fractions, then the tool certainly should let you have coordinates that are fractions; it wouldn't make sense to have them ask you to plot a vertex at (1/2,9/4) if the graphing tool only uses integer coordinates....
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
The axis of symmetry always passes through the vertex of the parabola . The -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, , and in vertex form the axis of symmetry is a vertical line
example:
....use vertex form to find coordinates
so, and and vertex is at (, )
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