Mon Prof Augmenté
Curve Inputs and Outputs
Age 15 · Maths
A function matches every input value with exactly one output value. On a curve, you move from an input on the horizontal axis to the curve, then across to the vertical axis to read its image; tracing the path backward can show an antecedent.
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Age 15: open this week
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In the picture
- The point on the curve where the dashed lines meet: the output matched to the chosen input.
- The dot on the horizontal axis: the chosen input value.
- The dot on the vertical axis: the output value read from the curve.
- A second point on the curve reached from the vertical axis and dropping to the horizontal axis: an output that leads back to an input.
Examples
- A vending machine button: one button press gives one snack.
- A temperature chart: each day has one recorded high temperature.
Key takeaways
- Each input has exactly one image, the output.
- An output can have one or more antecedents, the inputs.
Quiz: Curve Inputs and Outputs (Age 15)
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In a function, how many outputs does each input have?
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According to the card, how many antecedents can an output have?
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To read the image of an input from a curve, what do you do?
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