Mathematics GCSE
Linear functions and gradient
What Linear functions and gradient means in Mathematics GCSE, as defined for AQA.
Definition of Linear functions and gradient
Check what you remember
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Reference: AQA
A ratio describes a linear function y = kx, a straight-line graph through the origin whose gradient is the constant of proportionality.
Topics that use Linear functions and gradient
- Ratio, proportion and rates of change (AQA GCSE)
Related terms
- Algebraic rearrangement of compound-unit formulae
- Checking the reasonableness
- Chord versus tangent
- Comparing quantities of the same kind
- compound interest
- Compound Measure
- compound unit
- constant of proportionality
Using Linear functions and gradient in the exam
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