Expression 4: left parenthesis, "x" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis , "y" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis , right parenthesisx1t,y1t
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤