exam Maths Puzzle Numerical Ability

y=|x-4|+1
i have to graph this. and find the vertex

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exam Other Question

Multiply:
(√[6] + 2√[2])(4√[6] � 3√[2]) sqrt(-3-5)sqrt2+(-4-2)sqrt2 this is supposed to add up to sqrt100 and then into 10 how is this problem done?