3.1.2

Gradient & Y-intercept

Test yourself

Gradient and y-intercept of a Line

A line y = mx + c has gradient m and y-intercept c.

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y-intercept

  • The point where a line crosses the y-axis is called the y-intercept.
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Gradient

  • To calculate the gradient (slope) of a line, use 2 co-ordinates (A and B):
    • gradient = change in y รท change in x
    • where change in y = (yA - yB) and change in x = (xA - xB)

Jump to other topics

1Proof

2Algebra & Functions

2.1Powers & Roots

2.2Quadratic Equations

2.3Inequalities

2.4Polynomials

2.5Graphs

2.6Functions

2.7Transformation of Graphs

2.8Partial Fractions (A2 Only)

3Coordinate Geometry

4Sequences & Series

5Trigonometry

6Exponentials & Logarithms

7Differentiation

8Integration

9Numerical Methods

10Vectors

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