If K is a constant, which of the following equations best describes the parabola?
-
A.
y = kx2 -
B.
x = y2 – k -
C.
y = k – x2 -
D.
x2 = y2 – k -
E.
y = (k – x)2
Correct Answer: Option B
Explanation
The parabola is best described by the equation x = y2 – k because all other equations do not give the equation of the parabola in this position. C for example is the equation of a hyperbola facing downwards. D is the equation of a hyperbola A and E are equations of parabola facing upwards