The number line of the given expression would be explained in the attached image above.
What is a number line?
Number line can be defined as the graphical representation of negative and positive real numbers.
The given expression;
= -2⅚. This is first converted to a whole number before being plotted.
That is; -2⅚ = -2.83 = -3( nearest whole number)
Given also that 7/3 = 2.3 = 2(to the nearest whole number.
Therefore the graphical representation of -3 and 2 can be seen in the figure attached above.