exam Maths Puzzle Numerical Ability

(1,-5)M=-25 graph each line passing through the given point and having the slope

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exam Other Question

Use a graphing utility to graph the function and approximate (to two decimal places) any relative minimum or relative maximum values
f(x)= -x 2squar +3x-2

Thanks Helen Weller invested $15,000 in an account that pays 11% simple interest. How much additional money must be invested in an account that pays 14% simple interest so that the average return on the two investments amounts to 12%?