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The vertex is sitting on (3, -6)
We see two more points we can label at
(0, -4)
(6, -4)
​
Let us find the values for a, A, B
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f(x) = +/-(a)( x +/- A ) +/- B
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​
​
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let's do some beautiful note taking
Let's find
a
=
(-4)
(-6)
6
3
-
-
-4 +6
3
Recall this formula for finding a
y = -4
k = -6
x = 6
h = 3
To find a we can take the coordinates of the vertex and another point to the right of that vertex, and use those numbers to find a
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Our vertex is (3, -6) so (h, k)
The chosen point is (6, -4) so (x, y)
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(-4) - (-6) == (-4) + 6 == 2
6 - 3 == 3
​
2
3
a =
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