How to determine the direction a parabola opens
1 answer:
Answer:
Upward or Downward
Step-by-step explanation:
A parabola is the graph of a quadratic function y = ax2 + bx + c. The graphs below depict two typical parabolas:
For clarity, we indicate their x-intercepts with red dots, their y-intercepts with pink dots, and the vertex of each parabola with a green dot:
The first parabola (a U shape) opens vertically, whereas the second parabola opens downwards (is an upside down U shape).
Given the function y = ax2 + bx + c, write the following:
- <em>If an is greater than zero (positive), the parabola widens upward.</em>
- <em>If the value is 0 (negative), the parabola expands downward.</em>
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Answer:
<em><u>Solving steps:</u></em>
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
=> 40 cm × 30cm
× 48 cm
multiply all the numbers
=> 57,600cm
Hi hi hi hi
Answer:
Step-by-step explanation:
They are equal. When the negative sign is inside the box the absolute value is positive, when the negative sign is outside the box THEN it is negative.