IB Math AI Assessment Questions (Examples)
Calculator: Allowed
Recommended Time: 30–40 minutes
Total: 30 marks (adjust as needed)
1) Percent Change + Interpretation (5 marks)
A jacket originally costs $96. It is on sale for 30% off, and then sales tax of 7.5% is added.
(a) Find the sale price before tax. (2 marks)
(b) Find the final price after tax. (2 marks)
(c) Explain what the 7.5% represents in context. (1 mark)
2) Linear Model in Context (6 marks)
A ride-share company charges a $4.50 base fee plus $1.85 per mile.
(a) Write an equation for the total cost CCC in terms of miles mmm. (2 marks)
(b) Calculate the cost of a 12-mile ride. (2 marks)
(c) A rider paid $26.70. Determine how many miles they traveled. (2 marks)
3) Data + Correlation (6 marks)
A student recorded the number of hours they slept and their mood score the next day (out of 10).
|
Hours of Sleep
|
5
|
6
|
7
|
8
|
9
|
|
Mood Score
|
4
|
5
|
6
|
8
|
9
|
(a) Describe the relationship between sleep and mood. (2 marks)
(b) Predict the mood score for 7.5 hours of sleep and explain if it is interpolation or extrapolation. (2 marks)
(c) State one reason why correlation here does not prove causation. (2 marks)
4) Exponential Growth: Savings (6 marks)
You invest $650 into an account earning 3.8% interest compounded annually.
(a) Write a formula for the balance after ttt years. (2 marks)
(b) Find the balance after 8 years. (2 marks)
(c) Explain what the 3.8% means in context. (2 marks)
5) Reading a Graph / Interpreting a Model (7 marks)
A gym offers two membership plans:
Let xxx represent the number of classes in a month.
(a) Write an equation for each plan’s cost. (2 marks)
(b) Find the number of classes where the two plans cost the same. (3 marks)
(c) Explain which plan is better for someone who takes 3 classes per month and someone who takes 8 classes per month. (2 marks)
Optional Short “AI Exam-Style” Communication Question (Add-On)
6) Interpretation Question (3 marks)
A student uses their calculator to find the regression equation:
y=2.6x+41.3y = 2.6x + 41.3y=2.6x+41.3
(a) Explain what the slope (2.6) means in context. (2 marks)
(b) Explain what the intercept (41.3) means in context. (1 mark)
If you want these to feel very IB (quick rubric)
For IB Math AI, you can score communication like this:
✅ Full credit responses typically include:
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correct calculation
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units (dollars, hours, years)
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a sentence that explains meaning in context
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“reasonable” judgment (interpolation vs extrapolation, limitations, etc.)
