SOLUTION: If the graph of the parabola y=kx^2+6x+k+8 is tangent to x-axis, then what is the positive value of k?
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Question 167267: If the graph of the parabola y=kx^2+6x+k+8 is tangent to x-axis, then what is the positive value of k?
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
if the graph is tangent to x-axis then discriminant is 0
then
then
then or
then (positive value)
Answer:
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