Rosalinda27
Rosalinda27 Rosalinda27
  • 02-06-2017
  • Mathematics
contestada

Help me in math please

Help me in math please class=

Respuesta :

jimthompson5910 jimthompson5910
  • 04-06-2017
Answer: Choice A

Proof:
Replace x with 1 and y with 2. This is because (x,y) = (1,2) so x = 1 and y = 2.

Doing both replacements and simplifying leads to...

2*x - y = 0
2*1 - 2 = 0
2 - 2 = 0
0 = 0

That confirms (x,y) = (1,2) is a point on the line.
It confirms (1,2) is a solution to the equation.
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