exam Maths Puzzle Numerical Ability

write the equation of the line that passes through point (6,-7) with a slope of -2

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exam Other Question

Determine the equation of any vertical asymptotes of the graph of:

f(x)= (2x+3)/(x^2+2x-3).

Thanks An audio store buys 60 cassettes. It gives away 3 cassettes free for a contest. It sells the remaining cassettes for 2 time the purchase price. The profit on the cassettes is $