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Monday, September 9, 2013

SP#1: Unit E Concept 1: Quadratic


This problem is about putting a function, f(x)=x^2-6x+5, into the parent function equation and using the parent form to find the vertex, axis of reflection, y intercept, and x intercepts. To solve the function, we must first use the 'completing the square' method (as shown on the left side of the image) to factor the equation out. This will make it easier to put it in the parent function equation (as shown on the right side of the image) and subsequently find the needed values.
One thing you, dear viewer, might want to keep an eye on is the x intercept values. Make sure you do the math carefully and don't end up with a strange square root or an imaginary number (neither of which are in the answers.) Don't forget that there are two x intercepts as well, unlike the singular y intercept we all know and love.

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