exam Maths Puzzle Numerical Ability

Is y=|x|+2 a function? Why or Why not?

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exam Other Question

What should i do for this problem: Line through (1,-3) parallel to 2x-3y=7 Widgets R Us received proceeds of $3,082.67 from a simple discount note at 11% interest for 4 months. What was the maturity value of the note?

a. $3,300
b. $3,200