Question

参数方程的转化将下列参数方程转化成普通方程：x=(k+1)/(k+2)y=(2k+1)/(k+2)

Answer 1

x=(k+1)/(k+2) ===>k=(1-2x)/(x-1) 将这代y=(2k+1)/(k+2) ===>8x-y-1=0