Behaviour of a line when the coordinate axes are rotated anticlockwise
表达式6: "m" equals 0.5 4m=0.54
negative 5−5
55
6
表达式7: "c" equals 3.6 7c=3.67
negative 5−5
55
7
表达式8: "y" equals "m" "x" plus "c"y=mx+c
8
表达式9: "p" equals StartFraction, "m" cos left parenthesis, alpha , right parenthesis minus sin left parenthesis, alpha , right parenthesis Over "m" sin left parenthesis, alpha , right parenthesis plus cos left parenthesis, alpha , right parenthesis , EndFractionp=mcosα−sinαmsinα+cosα
equals=
0.5 40.54
9
表达式10: "q" equals "c" cosine alpha minus "p" "c" sine alphaq=ccosα−pcsinα
