<PRE><B>Question 1034685</B>
We can find the slope of this relationship by
{{{m = (y[2]-y[1])/(x[2]-x[1]) = (520-340)/(22-10) = 180/12 = 15}}}dollars per chair
So far we have
y = 15x + b
If we plug in x and y, we can find b...
340 = 15(10) + b
b = 190
so our equation is
y = 15x + 190
Now if y = $730,
730 = 15x + 190
540 = 15x
x = 36 chairs</PRE>