Posted by Maria1 on Saturday, May 5, 2012 at 8:23am.
y=mx+b or y=kx+b (m is the standard symbol, which came to us 300 years ago from the French Academy, headed by Rene Descartes. It has served us well as the symbol for slope).
y=mx+b
60=m*10+b
No since you state y varies directly as x, this implies b=0
m=6
Yikes, so K=0 and y=6? Help please..
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