Question

HELP...... which is a solution of the equation? 2x - y = 0

a. ( 3, -1 )

b. ( 2, -4 )

c. ( 1, 2 )

d. 3

Answer 1

All we need to do is plug the numbers into the equation.

A:

`2(3)--1=0\\6--1=0\\7\\eq0`

Not A.

B:

`2(2)--4=0\\4--4=0\\8\\eq0`

Not B.

C:

`2(1)-2=0\\0=0`

C is the correct answer