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Find the value of c such that the three points (5,5), (-3,1), and (6,c) lie on the same line.

 May 28, 2020
 #1
avatar+912 
+1

Here is a graph.

 

The slope is 5-1 = 4 divided by5 + |-3| = 8, so the slope is 1/2.

 

Thus the y value increases 1 for every +2 in the x.

 

You can calculate c now.

 

If you don't understand anything feel free to ask.

 May 28, 2020

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