What is the slope of the hypotenuse of a 3 4 5 right triangle where 3 is horizontal side 4 is vertical side and 5 is the other side

If the vertical (opposite) side is 4 and the horiz. (adjacent) side is 3, then the slope of the acute angle near the horiz. side is just (4/3).

You might benefit from sketching this situation.  
What if the vert. side were 3 and the horiz. side were 4?  What would the slope of the hypotenuse be?

   

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