3 years ago

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x^2 + 12x + 5?

Mathematics

2 answers:

aleksley [76]3 years ago

6 0

(-2, -7) The answer would be -2. I hope that this helped! ;)

ahrayia [7]3 years ago

4 0

Well it will be a simple as grid algebra
3(2+12)+12x5

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If AD is the altitude to BC, both the segments AD and BC will be perpendicular to each other.

By the property of perpendicular lines,

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where $m_1$ is the slope of the line AD and $m_2$ is the slope of BC.

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$m_1\times (-\frac{2}{5})=-1$

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