The rate of change of the linear equation is -10
How to determine the rate of change
The slope or rate of change in linear equation is represented as m,
the slope, m calculating using the points on the graph (1, 18) and (1.5, 23)
m = (y₀ - y₁) / (x₀ - x₁)
m = (18 - 23) / (1 - 1.5)
m = (5) / (-0.5)
m = -10
The rate of change of the table is -10