SOLUTION: Write the equation in slope-intercept form and standard form: Through (-2,7); perpendicular to x=9.

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Question 647909: Write the equation in slope-intercept form and standard form: Through (-2,7); perpendicular to x=9.
Answer by solver91311(24713) About Me  (Show Source):
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The line has an undefined slope. Hence, any perpendicular to such a line must have a zero slope (horizontal). Lines with a zero slope have the characteristic that all points on the line have identical coordinates. Just set equal to that value. In the case of horizontal lines the slope-intercept and standard forms are identical.

John

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