Junior Cycle · Functions and Graphs
⏱ Tested in 3 exam questions since 2023
Lesson 1 of 7
JCHL Functions 1: Substitution
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- f(x) is just another way of writing a function (like y = 2x + 3)
- The number in the brackets is the INPUT — sub it in wherever there is an x
- The answer you get is the OUTPUT
Most recent exam questions
- 2025 Q12(a)(i)
- 2025 Q9(e)
- 2023 Q11(c)(i)
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