2.4.1

Straight Line Graphs

Test yourself

Coordinates

Co-ordinates involve plotting an x (horizontal) co-ordinate and a y (vertical) co-ordinate.

Illustrative background for Point (2,1)Illustrative background for Point (2,1) ?? "content

Point (2,1)

  • The point (2,1) has x-coordinate 2 and y-coordinate 1.
Illustrative background for AxesIllustrative background for Axes ?? "content

Axes

  • The x-axis is the horizontal axis. On the x axis, the y co-ordinate is 0.
  • The y-axis is the vertical axis. On the y axis, the x co-ordinate is 0.

Straight Line Graphs

Illustrative background for Vertical linesIllustrative background for Vertical lines ?? "content

Vertical lines

  • Vertical lines are written as:
    • x = 2
Illustrative background for Horizontal linesIllustrative background for Horizontal lines ?? "content

Horizontal lines

  • Horizontal lines are written as y = a:
    • y = 1
Illustrative background for Straight lines through the originIllustrative background for Straight lines through the origin ?? "content

Straight lines through the origin

  • Sloping lines are written as y = mx.
  • m tells you the gradient of the line.
    • If m is negative the graph slopes down from top left to bottom right.
    • The larger m is, the steeper the slope of the line is.

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

Go student ad image

Unlock your full potential with GoStudent tutoring

  • Affordable 1:1 tutoring from the comfort of your home

  • Tutors are matched to your specific learning needs

  • 30+ school subjects covered

Book a free trial lesson