Sometimes you are given a function on a graph and asked to find the domain and range of that function. But what are the domain and the […]More…

# Category: Graphs

# Box Plots

Box plots are used to represent the 5 data items listed below graphically, which are: Lowest value in the dataset Lower Quartile (LQ) Median Upper Quartile (UQ) […]More…

# Best Fit on a Scatter Diagram

When drawing a ‘best fit’ line on a scatter diagram, you need to keep in mind a few points as these will determine whether you best fit […]More…

# Estimate the Area under a Curve

When estimating the area under a curve, you need to split the area under the curve into a number of distinct shapes; the total area of those […]More…

# Frequency Polygons

A frequency polygon is a line graph that is based on a frequency table. Frequency polygons are similar to histograms. Here is an example below.

# Cumulative Frequency Diagram

The next step after completing your Cumulative Frequency table is to draw a Cumulative Frequency Diagram; and the question that is most likely to come up is […]More…

# Scatter Diagrams

A scatter diagram is a way of visually representing information on two variables on a graph. You can get 3 possible outcomes with scatter diagrams, these are: […]More…

# Direct & Inverse Proportions

Sometimes you are told that 2 quantities (or values) are directly proportional (or inversely proportional) to one another. This means that there is a relationship between the […]More…