Solve the equation, using the domain of x = {-1, 0, 2}.
2x + 3y = 7
A. {(-1, 3), (0, 7/3), (2, 1)}
B. {(3, -1), (7/3, 0), (1, 2)}
C. {(5, -1), (7/2, 0), (2, 1)}
D. {(-1, -3), (0, 7/3), (2, 1)}

Question

Solve the equation, using the domain of x = {-1, 0, 2}. 
2x + 3y = 7
	A.	{(-1, 3), (0, 7/3), (2, 1)}
	B.	{(3, -1), (7/3, 0), (1, 2)}
	C.	{(5, -1), (7/2, 0), (2, 1)}
	D.	{(-1, -3), (0, 7/3), (2, 1)}

anonymous · Answer

@luckythebest

anonymous · Answer

since domain of x = (-1,0,2), the answer can be one out of A or D.(i.e. the x oval components)

we also find that there are common options (0,7/3) and (2,1)

Hence the decisive option is (-1,3) or (-1,-3)

Now using (-1,3) in 2x+3y = 7

If 2.-1 + 3.3 = 7

i.e. -2 + 9 = 7

i.e. 7 = 7, which is true.

Hence (-1,3) satisfies the equation.

Answer - option A