exam Maths Puzzle Numerical Ability

Please Help...I am lost on graphing. Can anyone tell me the best program to do a graph in? Here is my question. Determine the correct half-plane & complete the graph

y>3

th

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exam Other Question
the product of two consecutive integers is 3 less than 3 times their sum. Find the integers. Find K so that the vectors [4,-3] and [k,-6] (a) point in the same direction
(b) are perpendicular