设y=ax+b,xy=c; i (c,a不为零)
=>ax*x+bx-1=0; ii
A(x0,y0)=>由i,ii得abc值;iii
ax*x+bx-1=0推x的坐标和解情况交与两点的话b*b+4a>0;
由非x0解x1再加i推出y1=a*x1+b;
设y=ax+b,xy=c; i (c,a不为零)
=>ax*x+bx-1=0; ii
A(x0,y0)=>由i,ii得abc值;iii
ax*x+bx-1=0推x的坐标和解情况交与两点的话b*b+4a>0;
由非x0解x1再加i推出y1=a*x1+b;