Unformatted text preview: r the lines 3x + 4y = 12 and 6x + 8y = 2
are parallel, perpendicular, or neither.
Find the standard form of the equation of the line that is
perpendicular to x − 4y = 7 and passes through (−5, 3). Outline Three Forms of a Linear Equation Graphing Linear Equations The PointSlope Form of a Line Applications The SlopeIntercept Form and Graphing The pointslope form of a line is convenient for constructing
the equation of a line from information about the line.
We need only two points on the line, or one point on the line
and the slope of the line.
Example
If a line...
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 Spring '14
 K.JPlatt
 Algebra, Linear Equations, Equations, Slope, Elementary algebra

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