Question

NEED HELP!! Is (2, 4) a solution to the equation y = x – 2? A. yes B. no

Answer 1

Answer: No

The ordered pair (2,4) is not a solution to the equation y = x-2

=========================================================

Explanation:

Any point is of the form (x,y)

So saying (2,4) means x = 2 and y = 4 pair together

Plug both of these values into the equation below

y = x-2

4 = 2-2

4 = 0

We get a false statement, so the original equation is false when (x,y) = (2,4)

---------------

Put another way, plugging x = 2 leads to...

y = x-2

y = 2-2

y = 0

But it should lead to y = 4 if (2,4) was a solution.

If your teacher said "(2,0) is a solution", then that would be a true statement.

Answer 2

The answer would be (B) or, no