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Equations of lines

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1. Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = -3x + 1.

2. Write the equation of the line passing through (-3, -5) and (3, 0).

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Problem #1
Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = -3x + 1
The slope of the line y = -3x + 1 is ...

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