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Mathematics
Problem
Which line is the axis of the parabola whose standard equation is
y
2
=
4
a
x
y^2 = 4ax
y
2
=
4
a
x
? a)
x
=
−
a
x=-a
x
=
−
a
b)
y
y
y
-axis c)
x
x
x
-axis d)
x
=
a
x=a
x
=
a
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