Graphs are used to represent functions and equations
The best value of x is x = 5
From the question, we understand that x represents the unit of calculating the resale in plot million of rands
This means that x cannot be negative.
So, we have x = 2 and x = 5
The graph is not given.
So, we can assume that the graph is a linear function with a positive slope
For a linear function with a positive slope, the higher the x value, the higher the output value
Hence, the best value of x is x = 5
Read more about graphs and functions at:
https://brainly.com/question/14323743
