2.4.3

Grad + YIntercept

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

1Number

1.1Using Numbers

1.2Fractions, Decimals & Percentages

1.3Powers & Roots

1.4Accuracy

2Algebra

2.1Introduction to Algebra

2.2Manipulating Algebra

2.3Proofs & Functions

2.4Straight Line Graphs

2.5Common Graphs

2.6Transformations & Tangents

2.7Properties of Graphs

2.8Solving Equations

2.9Inequalities

2.10Sequences

3Ratio

4Geometry

4.1Introduction to Geometry

4.2Triangles & Quadrilaterals

4.3Transformations

4.4Circle Basics

4.5Circle Theorems

4.6Measurements & Units

4.7Calculating Area

4.8Triangle Formulae

4.93D Shapes

4.10Vectors

5Probability

6Statistics

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