algebra
posted by Tina .
Which of the following best describe the graph of a quadratic equation with one real root?
A: It has 2 xintercepts
B: It does not cross the xaxis
C: Its vertex lies on the xaxis
D: Its vertex lies on the yaxis

It could be either C or D.
x = ay^2 has a vertex on the y axis.
y = bx^2 has a vertex on the x axis.
a and b are constants
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