<PRE><B>Question 380332</B>
HOw do you know when an equation has an infinite number of solutions?
Any single linear equation has an infinite number of solutions of the
form (x,y).
A system of 2 linear equations has an infinite number of solutions if
one of the equations is a multiple of the other.
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How do you know when an equation has no solution
A system of 2 linear equations has no solution if
the slopes are equal and the y-intercepts are not equal.
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Cheers,
Stan H.</PRE>