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Cannon Hancock
Mathematics
30 September, 13:19
Y = - 3x2 - 12
Axis of symmetry:
+3
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2
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Daniella Morrow
30 September, 13:20
0
The answer to that would be - 18
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Terrance Gonzales
30 September, 13:24
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Answer: x = 0
Work Shown:
y = - 3x^2 - 12 is the same as y = - 3x^2 + 0x + (-12)
Compare this to y = ax^2 + bx + c, and we'll find that
a = - 3
b = 0
c = - 12
Plug the 'a' and 'b' values into the formula below and simplify
h = - b / (2a)
h = - 0 / (2 * (-3))
h = 0
The x coordinate of the vertex is x = 0, so the axis of symmetry is also x = 0.
The axis of symmetry lays perfectly on top of the y axis.
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