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Maths Puzzle
Numerical Ability
60=2h-7+2h+7
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solve /x/= 7
^absolute value
and...
solve /x/= -9
and...
solve and graph /x+5/<= 2
Find the equation of the line which is perpendicular to the line and passing through the point (4, -2). Sketch the line and the perpendicular line in the same set of axes.