exam Maths Puzzle Numerical Ability

how would i solve this problem and graph it here is the problem
y=3halfx-1
y=-x+4
you half to gr

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exam Other Question

you have a set of 36 flash cards numbered from 1 to 36.A card is chosen at random.Find the odds in favor of,and the odds against,each selection.
(a)even number
(b)greater than 20 Find all the numbers for which the rational expression below is not defined:
x^2-16 / x^2 - 3x+12