syms x
>> y1=-3/4*x
y1 =
-(3*x)/4
>> y2=-1/2*x
y2 =
-x/2
>> ezplot(y1)
>> hold on
>> ezplot(y2),A=fzero('-(3*x)/4-x/2',0)
即可以从图中看到了
syms x
>> y1=-3/4*x
y1 =
-(3*x)/4
>> y2=-1/2*x
y2 =
-x/2
>> ezplot(y1)
>> hold on
>> ezplot(y2),A=fzero('-(3*x)/4-x/2',0)
即可以从图中看到了