document.write( "Question 1115500: 1. What is the equation of the line through (1,2) and (3, -1)?\r
\n" ); document.write( "\n" ); document.write( "2. What is the vertex of f(x) = x2 – 6x + 3?\r
\n" ); document.write( "\n" ); document.write( "3. Using points, straight lines, and possibly the curve of a parabola, construct a piecewise function whose graph looks like a smiling face.
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Algebra.Com's Answer #730365 by Alan3354(69443)\"\" \"About 
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1. What is the equation of the line through (1,2) and (3,-1)?
\n" ); document.write( "Not \"the equation,\" an equation.
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\n" ); document.write( "There are several ways to find one, and it's been done on this site 1000's of times. Look it up.
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\n" ); document.write( "2. What is the vertex of f(x) = x2 – 6x + 3?
\n" ); document.write( "Use ^ (Shift 6) for exponents.
\n" ); document.write( "f(x) = x^2 – 6x + 3
\n" ); document.write( "The vertex is on the line of symmetry, x = -b/2a
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\n" ); document.write( "3. Using points, straight lines, and possibly the curve of a parabola, construct a piecewise function whose graph looks like a smiling face.
\n" ); document.write( "No.
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