SOLUTION: what equation has a slope of 2- and passes through the point (3,7)?

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Question 1040759: what equation has a slope of 2- and passes through the point (3,7)?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Find slope m=2, given points (3,7) and (x,y). The formula for slope will give you what you want.

What is that dash character trailing the "2"? Is it meant as a negative sign?