Ejercicio ( PageIndex {15} )

 

Determine si el punto dado es o no una solución al sistema de desigualdades.

 

1. ((- 6,1) );

 

( left { begin {array} {l} {- x + y> 2} \ {x – 2 y leq – 1} end {array} right. )

 

2. ( left ( frac {1} {2}, – 3 right) );

 

( left { begin {array} {l} {4 x – 2 y geq 8} \ {6 x + 2 y <- 3} end {array} right. ) [ 19459002]  

3. ((- 4, -2) );

 

( left { begin {array} {l} {x – y> – 3} \ {2 x + 3 y leq 0} \ {- 3 x + 4 y geq 4} end {array} right. )

 

4. ( left (5, – frac {1} {5} right) ) ‘

 

( left { begin {array} {l} {y frac {2} {3} x – 1} end {array} right. )

 

5. ((- 3, -2) );

 

( left { begin {array} {l} {y <(x - 1) ^ {2}} \ {y leq | x + 1 | - 3} end {array} derecha. )

 

6. ( left (2, – frac {2} {3} right) );

 

( left { begin {array} {l} {y <0} \ {x ^ {2} + y geq 3} end {array} right. )

 

     

Respuesta

     

     

1. Sí

     

3. Sí

     

5. Sí