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A day full of math games & activities. Find one near you.
How do you find the vertex of y = -3x² + 6x -4.
Solution:
Given equation y = -3x² + 6x - 4.
this is of the form a = -3, b = 6 and c = -4
The general vertex form of the parabola of a(x-h)² +k
where the vertex is represented as (h, k)
To get vertex form we need to expand -4 as -3 and -1
y= −3x² + 6x -3-1
y= −3(x² - 2x +1) -1
y= −3(x -1)² -1
This is in standard vertex form y= -a(x-h)² +k
So, we get vertex as (1, -1)
How do you find the vertex of y = -3x² + 6x -4.
Summary:
We find the vertex of y = -3x² + 6x - 4 by splitting the constant.
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