exam Maths Puzzle Numerical Ability

Problem #1
Which of the ordered pairs (3,1),(0,-4),(-4,0),(-3,-7) are the solutions for the equations for the equation x-y=4?

answer is within these:
(a) (0,-4) ,(-4,0),and

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exam Other Question

Given f(x) = -x3 - 3x2 + 3x + 7, find f(-1), f(0), and f(2) You are traveling from New Albany to Indianapolis. On the map you measure the distance to be 4 1/2 inches. If the scale of the map is 1 inch: 25 miles, how far will you travel?