The point (2,-1) is on the line2x+y=5

Nope its not on the line

Step-by-step explanation:

2x+y=5

2(2)+(-1)=5

3=5

which is not true

For this equation to be true y has to equal 1 if x is 2 and the equation would go like this:

2x+y=5

2(2)+1=5

5=5

True

here the number -5 is all of the following except a rational number.

step-by-step explanation:

b is the answer that makes most sense

step-by-step explanation: