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The equation below describes a parabola. If a is negative, which way does the parabola open?
y=ax^2
a. down
b. left
c. up
d. right

Respuesta :

W0lf93
Given equation : y=ax^2 
Taking a to the other side we have, x^2=(1/a)*y
 This equation describes a parabola that opens up.
 When a is negative, the focus is on the negative y-axis, therefore, the parabola opens down.
 The answer is a. down.

The parabola opens in the downward direction, as per the general form of parabola.

What is the general form of a parabola?

The general form of a parabola opening vertically is:

y = a(x - h)² + k

Here, (h, k) are the coordinates of the vertex and the focus is at (a, 0).

Here, If  a > 0, the parabola opens upwards.

If a < 0, the parabola opens downwards.

The given equation of a parabola is: y = ax².

As the value of 'a' is negative, therefore, a < 0.

Hence, the parabola opens downwards.

Learn more about parabola here: https://brainly.com/question/2891681

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