Expression 3: "s" ( "t" ) equals 15 minus 15 / 16 * ( "t" minus 8 ) squared left brace, 8 less than "t" less than or equal to 12 , right braces(t)=15−15/16*(t−8)28<t≤12
3
Expression 4: "s" ( "t" ) equals negative 20 * sine ( 3.1 4 / 8 * ( "t" minus 20 ) ) left brace, 12 less than "t" less than or equal to 16 , right braces(t)=−20*sin(3.14/8*(t−20))12<t≤16
4
Expression 5: "y" equals 20 left brace, 16 less than "x" less than or equal to 20 , right bracey=2016<x≤20
