Answer-
The initial value of the linear relationship is 5.
Solution-
The initial value, also know as y-intercept, is the output value when the input of a linear function is zero. It is the y-value of the point where the line crosses the y-axis or x=0 line.
As the line passes through the y-axis at 5, i.e 5 is the y intercept of the line.
Therefore, the initial value of the linear relationship is 5.