When graphed, which parabola opens downward?
y = –3x2
y = (x – 3)2
y = one-third x squared
y = x2 – 3

A: y=-3x^2

Step-by-step explanation:

This is what it says on edge.

A.

Step-by-step explanation:

Took on edge2020

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

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