# Vectors : Angles and Equations of Intersecting Lines

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Find a value of k so that the angle between the line 4x + ky = 20 and the line 2x - 3y = -6 is 45 degrees.

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#### Solution Preview

4x + ky = 20 => y= (-4x+20)/k => the slope of this line is -4/k = tan(theta1)

2x - 3y = -6 => ...

#### Solution Summary

Angles and equations of intersecting lines are investigated.

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