Is (2,-1) a solution of 2x-y=5? Explain and solve please and thank you.

YES

Step-by-step explanation:

2x-y=5

2(2)-(-1)=5

4-(-1)=5

4+1=5

5=5

first replece x and y , 2(2)-(-1)=5

4 +1=5 correct

Step-by-step explanation:

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

im pretty sure it would be 5 am, hope that , and give brainliest and guys if this is right then press the button and give 5 stars