exam Maths Puzzle Numerical Ability

2 times sq. root of x minus sq. root of 2x+1=1

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exam Other Question

How would I graph these equations: (a) y = x + 3 (b) y = -1/3x (c) y = 1/3x (d) y = 3x?? If possible could you please show me how to graph all 4, because the more you show me, the easier it is for me to catch on. Graphing is very difficult for me. From a deck of 52 cards, how many different four card hands could be dealt which include one card from each suit?