<PRE><B>Question 66627</B>
The value of a savings account invested at Simple interest can
be expressed as a linear equation.
If interest is 5% ,the investment is for t years, the initial deposit
is $1000, then 
Value after t years is V(t) = 1000(1.05)t
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Slope: if the slope is positive the the dependent variable 
increases as the independent variable increases.
Cheers,
Stan H. 
</PRE>