Straight Line Graphs -Chapter 5

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1

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what is the equation for the gradient?

y2-y1/x2-x1

2

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what is a way to write the equation of a straight line?

ax+by+c=0

3

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how do you write a line equation with m and (x1,y1)

(y-y1)=m(x-x1)

4

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how do you find the distance between 2 points

square root of (x2-x1)²+(y2-y1)²

5

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how do you find the gradient of a perpendicular line?

-1/m