Asked by Ariel
the graph of the function
f(x)=x^2-kx+k+8 touches the x-axis at one point. What are the possible values of k
f(x)=x^2-kx+k+8 touches the x-axis at one point. What are the possible values of k
Answers
Answered by
Steve
see previous answer. You need
x^2 - kx + k+8 to be a perfect square
x^2 - kx + k+8 to be a perfect square
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