The image of linear function y = KX + B passes through (- 2,5) and intersects with y axis on P line, y = - X / 2 + 3 intersects with y, and O P.O is symmetric about X axis The expression of this function

The image of linear function y = KX + B passes through (- 2,5) and intersects with y axis on P line, y = - X / 2 + 3 intersects with y, and O P.O is symmetric about X axis The expression of this function

The coordinates of point o at the intersection of line y = - X / 2 + 3 and y are (0,3)
The coordinates of point P at the intersection of y = KX + B and Y axis are (0, b)
P and o are symmetric about X axis, then B = - 3
So y = KX + B passes through points (- 2,5) and (0, - 3), substituting with
5=-2k+b
-3=0+b
obtain
k=-4,b=-3
So the linear function is
y=-4x-3