Question

Which quadratic function is in standard form?

Answer 1

Answer:

  h(x) = 2x² -8x -10

Step-by-step explanation:

In the US, a quadratic is in standard form when the terms are listed in order of decreasing degree.

In the UK, a quadratic is in standard form when it is written in vertex form.

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US

The only function with terms in order of decreasing degree is ...

  h(x) = 2x² -8x -10

UK

All of the functions except the last are written in vertex form:

• f(x) = (x +1)² +0 . . . . . . . . would usually be written f(x) = (x +1)²
• y(x) = -(x -6)² +16
• g(x) = -3(x -3)² +4

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Additional comment

Since the question asks about one function, we assume it is from the perspective of the US understanding of standard form. The point here is that "standard form" may vary from one tradition to another. (The "standard form" for numerical values varies by tradition, as well.)