It is known that the intercept of the image of the first-order function y & # 8321; = (M & # 178; - 2) x + 1-m and Y & # 8322; = (M & # 178; - 4) x + M & # 178; - 3 on the y-axis is opposite to each other, then the analytic expression of the two first-order functions is?

It is known that the intercept of the image of the first-order function y & # 8321; = (M & # 178; - 2) x + 1-m and Y & # 8322; = (M & # 178; - 4) x + M & # 178; - 3 on the y-axis is opposite to each other, then the analytic expression of the two first-order functions is?

b1=1-m;
b2=m²-3
b1+b2=0
1-m+m²-3=0
(m-2)(m+1)=0
m1=2,m2=-1
m=2:
y₁＝﹙m²－2﹚x＋1－m=﹙2²－2﹚x＋1－2=2x-1;
y₂＝﹙m²－4﹚x＋m²－3＝﹙2²－4﹚x＋2²－3=1;
m=-1,
y₁＝﹙m²－2﹚x＋1－m＝﹙1－2﹚x＋1+1=-x+2;
y₂＝﹙m²－4﹚x＋m²－3＝﹙1－4﹚x＋1－3=-3x-2;

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