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August 31, 2015

Homework Help: Math

Posted by Kate on Tuesday, July 12, 2011 at 9:22pm.

Stacey buys a $1000 RRSP today. After one year she adds $2500. By the end of the second year, the money has grown to $3851 as it has earned interest over time. What rate of interest does the money earn?

1000x^2 + 2500x - 3851

Use the quadratic formula above and your calculator to solve for x and i.

There are two solutions to the quadratic equation. Which one would you choose? Why?

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