Question

In which direction does the parabola open?

Answer 1

Answer:

  up

Step-by-step explanation:

A graphing calculator, spreadsheet, or web site can help you with this one, or you can simply plot some points on a graph.

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Only the highest-degree terms matter for answering this question. Leaving the others out, the form is ...

  y = x^2

This tells you that y gets more positive for larger and larger values of x, regardless of their sign. Thus the graph of it is U-shaped, opening upward.

Answer 2

A parabola opens (up)