Question: Which Equation is Best?

Comment on Which Equation is Best?

Hi Brent,

I'm a bit confused how we got the slope of the line as negative.

Please help.
greenlight-admin's picture

If you go to 3:30 in the following video, you'll see a nice rule for determining whether a slope is positive or negative: https://www.greenlighttestprep.com/module/gre-algebra-and-equation-solvi...

Cheers,
Brent

Does this make sense to answer his question…line going uphill = positive slope…line going downhill = negative slope?
greenlight-admin's picture

Yes, we can definitely use that feature to answer the question.

Cheers,
Brent

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