exam Maths Puzzle Numerical Ability

CAN OF YOU FAMOUS TUTORS PLEASE ASSIST.
PLOT THE POINT WITH COORDINATES (-4,0)

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exam Other Question

The numerator in a rational function defines that function’s:
However, any value of ‘x’ that drives R(x)’s numerator to zero defines the location of R(x)’s zeroes.
a. Zeroes
Ok, this question is so confusing, the problem is: If y varies as x^2, and y=2 when x=4, what is the constant of variation?
Please and Thank you=)