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OpenStudy (1645323):
find the zero of this equation:y=-x^2-6x-9
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OpenStudy (anonymous):
The zero is "-3"
OpenStudy (1645323):
and that's the only one?
OpenStudy (anonymous):
If you graph it here: https://www.desmos.com/calculator You will get an x-intercept of -3.
OpenStudy (anonymous):
Yes, the Vertex touches the x-axis at -3.
OpenStudy (1645323):
ok
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OpenStudy (anonymous):
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