How do you determine the constant of variation for the direct variation given #Y=-3/2x #?
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"Suppose that I don't have a formula for #g(x)# but I know that #g(1)
= 3# and #g'(x) = sqrt(x^2+15)# for all x. How do I use a linear approximation to estimate #g(0.9)# and #g(1.1)#?"
1 Answer
Oct 21, 2015
Explanation:
The statement "y varies directly as x" can be algebraically expressed
as:
