Construct a piecewise function whose graph looks like a

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1. What is the equation of the line through (1, 2) and (3, -1)?

2. What is the vertex of f(x) = x2 - 6x + 3?

3. Using points, straight lines, and possibly the curve of a parabola, construct a piecewise function whose graph looks like a smiling face.

Reference no: EM131098560

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