Plotting and interpreting graphs _______________________________________________________________________________________________________________________________________________________________________________________________________________________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).EquationThe equation for the graph is of the form: y = k where 'k' is constantThe equation for the graph on the right: y = 30