Straight Line Graphs Flashcards by Dominic Lees | Brainscape

Q

How do you find the equation for a straight line graph from a point and the gradient?

A

y − y1 = m(x − x1)

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Q

How do you find the gradient of a line perpendicular to another line?

A

-(1/gradient)

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Q

If two lines are perpendicular, what is the product of their gradients?

A

-1

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