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Mathematics 7 Online
OpenStudy (anonymous):

Help with Geometry? @hartnn

OpenStudy (anonymous):

Can someone help explain how to do this? I'm a bit confused.

OpenStudy (thomas5267):

If two lines are parallel, their slope should be equal.

OpenStudy (anonymous):

How would I figure that out?

OpenStudy (thomas5267):

\[ \text{Slope}=\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1} \]

OpenStudy (thomas5267):

For example, the slope of AB is \(\dfrac{0-0}{x_2-0}=0\)

hartnn (hartnn):

so, you now just need to prove that slope of DE =0 did you try ? need anymore help ?

OpenStudy (anonymous):

I do need more help. I don't understand the whole concept of the slope or anything at all.

hartnn (hartnn):

in simple words, slope is rise/run |dw:1405009109462:dw| when you have the co-ordinates of two points on the line, we calculate slope by using the formula points (x1,y1) and (x2,y2) \(\huge m=\frac{y_1-y_2}{x_1-x_2}\)

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