Question 1059750
Can you tell me which inequality is a 
solution for the point (0,-4)

{{{system(y<expr(-3/2)x+3,2x+y<10,y>-1)}}}
<pre>
That doesn't make any sense, because although it makes sense
to speak of a point being a solution for an inequality, it 
doesn't make any sense to speak the vice-versa, of "an 
inequality being a solution for a point."

If we substitute x=0 and y=-4 in all three inequalities:

{{{system(-4<expr(-3/2)(0)+3,"2(0)"+(-4)<10,(-4)>-1)}}}

Then simplify all three:

{{{system(-4<0+3,0+(-4)<10,matrix(1,11,cross(-4>-1),"","","","","","<--",this,one,is,false))}}}  

Then finish simplifying:

{{{system(-4<3,-4<10,matrix(1,15,cross(-4>-1),"","","","","","<--",this,one,is,"false,",the,others,are,"true."))}}}

We see that the point (0,-4) is a solution to the first two
inequalities, but not the third one.   

If you want to discuss this, tell me about it in the thank-you
note form below and I'll get back to you by email.  There is
never any charge.  I do this for fun.

Edwin</pre>