Answer:
2x-y-1=0
Step-by-step explanation:
A(4,7)
B(2,3)
(y-ya)/(yb-ya)=(x-xa)/(xb-xa)
(y-7)/(3-7)=(x-4)/(2-4)
(y-7)/-4=(x-4)/-2
(7-y)/4=(4-x)/2=2(4-x)/4
so 7-y=2*4-2x
y=-8+2x+7
