ซ่อน ป้ายกำกับ left parenthesis, 25 "t" , 0 , right parenthesis25t,0
ป้ายกำกับ
7
นิพจน์ 8: "y" equals 0 left brace, 25 "t" less than "x" less than 0 , right bracey=025t<x<0
8
Distance between cars
9
นิพจน์ 10: StartRoot, left parenthesis, 25 "t" , right parenthesis squared plus left parenthesis, 60 "t" , right parenthesis squared , EndRoot25t2+60t2
equals=
136.5136.5
10
นิพจน์ 11: "y" equals StartFraction, left parenthesis, 60 "t" , right parenthesis Over negative 25 "t" , EndFraction left parenthesis, "x" minus 25 "t" , right parenthesis left brace, 0 less than "x" less than 25 "t" , right bracey=60t−25tx−25t0<x<25t