Given that the image of the first-order function y = half x-3 is parallel to the straight line and passes through (- 1,3), the function relation is obtained

It is known that the image of the linear function y = x / 2-3 is parallel to the line L, and l passes through (- 1,3),
Finding the linear L-function relation
If the line L is parallel to the linear function y = x / 2-3, then their slopes are equal
Let the analytic expression of the line l be y = x / 2 + B
Because l passes through the point (- 1,3)
Substituting the coordinates of this point into y = x / 2 + B, we can get the result
3=-1/2+b
b=3+1/2
b=7/2
So the functional relation of the line L is y = x / 2 + 7 / 2

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