SOLUTION: Find the value(s) of k so that 3/4 x^2 + kx = -27 has one real rational root.

SOLUTION: Find the value(s) of k so that 3/4 x^2 + kx = -27 has one real rational root.

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Question 328671: Find the value(s) of k so that 3/4 x^2 + kx = -27 has one real rational root.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use the discriminant, D.

When D=0, the quadratic has one real rational (double) root.

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Both instances of k are shown in the graph (+9-Red,-9 Green).
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