The equation was plotted using geogebra online graphing tool.
A function is said to be linear if it is a straight line graph and it can be represented by the equation:
y = mx + b
where y, x are variables, m is the rate of change and b is the initial value of y.
Given the equation:
3x + 5y = 18
Plotting the equation using geogebra online graphing tool, the graph is attached.
Find out more at: https://brainly.com/question/21835898