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Perpendicular Lines and the equation of a tangent

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Question 8

Here are the equations of 5 straight lines.

L:y=−4x+3 L: y = -4x + 3 L:y=−4x+3 M:y=4x−2 M: y = 4x - 2 M:y=4x−2 N:y=14x+1 N: y = \frac{1}{4}x + 1 N:y=41​x+1 O:y=−14x+6 O: y = -\frac{1}{4}x + 6 O:y=−41​x+6 P:y=−x+5 P: y = -x + 5 P:y=−x+5
a.

Write down the letter of the line that is parallel to y=−x−3y = -x - 3y=−x−3

[1]
b.

Write down the letter of the line that is perpendicular to y=4x+2y = 4x + 2y=4x+2

[1]

Perpendicular Lines and the equation of a tangent Questions

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