Foundations for College Math (MBF3C) · Mathematical Models

Exponential Growth/Decay Models

30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.

Start the 30 questions Curriculum: MBF3C-MM.5

Sample: the first question, solved

A population of 1000 grows at 3%/year. Write the equation for P after t years.

📘 Worked solution
The growth factor is 1+0.03=1.03, applied as a base raised to the power t.

And one from the hard end

"A $5000 investment grows at 6%/year; a separate $8000 investment depreciates at 5%/year. Find approximately when the growing investment exceeds the depreciating one."

Solution shown after you try it in practice mode.

Work through all 30, easiest to hardest

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