exam Maths Puzzle Numerical Ability

Find an equation of a parabola satifying the given consitions.

Focus (3,2), directrix x=-4

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exam Other Question

Is this a function?

x + y = 12

a. yes
b. no
c. It depends
d. None of the above x*+ax+b is a factor of the polynomial x^+qx*+rx+s.
Prove that r-b=a(q-a) and s=b(q-a).