exam Maths Puzzle Numerical Ability

Write the equation of a line parallel to the x-axis passing through the point (8,2)

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exam Other Question

My photo size is 5" x6 1/2". I wish to enlarge photo to 8" x 10". What percentage do I set on my printer. Stan. a function f is given along with a number c in its domain.
a.) find the difference quotient of f.
b.)Find f(c) by computing the limit of the difference quotient.
f(x)=3 at c=-5