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Title: How do I find the coordinates of the focus of a parabola? Post by: leobato on Jan 30, 2013 Determine the coordinates of the focus for the parabola y = 2x^2 - 8x + 3.
Title: How do I find the coordinates of the focus of a parabola? Post by: Smoores on Jan 30, 2013 Put the equation into vertex form.
y = 2x² - 8x + 3 y = 2(x² - 4x) + 3 y = 2(x² - 4x + (-2)²) - 2(-2)² + 3 y = 2(x - 2)² - 5 This is an up-opening parabola with vertex (2, -5) and focal length 1/(4·2) = ?. focus (2, -5+?) = (2, -4?) Title: How do I find the coordinates of the focus of a parabola? Post by: smooch92 on Jan 30, 2013 Content hidden
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