Plotting and interpreting graphs
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5. Straight horizontal line graph

A horizontal line is a line that is parallel to the x-axis of the coordinate plane

The variable shown on the y-axis (variable A) does not depend on the variable shown on the x-axis (variable B).

We can say that variable A (distance in the graph) does not depend on variable B (time in the graph).

Equation

The equation for the graph is of the form: y = k

where 'k' is constant


The equation for the graph on the right: y = 30

A

L

C