Gradient of a straight line

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Other lessons in this sub-strand

1. Gradient of a straight line
2. Average rate of change
3. The tangent and an instantaneous rate
4. The derivative from first principles
5. The power rule for polynomials
6. The gradient at a chosen point
7. Equation of a tangent
8. Equation of a normal
9. Velocity from displacement
10. Acceleration, and finding a time