exam Maths Puzzle Numerical Ability

Determine whether each ordered pair is a solution of the given equation.

y=8-4x (8,0), (16,-2), (3,-4)

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exam Other Question

In a bottling company, a machine can fill a 2-liter (L) bottle in 0.5 second (s) and move the next bottle into place in 0.1 s. How many 2-L bottles can be filled by the machine in 2 h? How would you solve (x)2+bx+36 by using (b over 2)all raised to 2?