Use this diagram and information given to find m

The drawing seems to suggest that angles BFA, AFE and EFD span a straight angle, just like angles BFC and CFD

This means that you have

But we know that both BFA and EFD measure 70 degrees, so the equation becomes

So, if you subtract 140 from both sides, you have

bottom left

step-by-step explanation:

the x's and the y's both go up the same amount each time, therefore it will be a linear function because it will go in a straight line when drawn on a graph.

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for b its (t) and c its (d)

step-by-step explanation: