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Help With a Parabola?

I have a math question about a parabola.

My vertex is (1.5,7.5) and I'm continuing the table. Since you can pick the set of x values, do they have to always be one less/one more than 1.5 or could I pick any number?

Would this be okay to use as my x-values?

X | Y

--------

-1

0

1.5

1

2

2 Answers

Relevance
  • 7 years ago
    Favorite Answer

    Yes, you can pick any numbers ... but some numbers help more than others. For instance, if you count up and down by the SAME AMOUNT, then you see the symmetry in the parabola (try 0, 1, 1.5, 2, 3). Also, keep the x-values in order (put the 1 before the 1.5) so that you can use the changing y-values as a check. (They will keep increasing (or decreasing) as you move away from the vertex. Little things like this can help reinforce stuff you're doing right and help you catch mistakes early.

    Hope that helps. cheers.

  • Anonymous
    7 years ago

    Doesn't really matter, as long as the numbers are correct

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