Question

Kara graphed the system of equations and stated that the solution is (4, –2). Check her solution algebraically. Which statement is true? A. The graph of y = -x + 2 is incorrect. B. The graph of y= 1/2x - 4 is incorrect. C. (–2, 4) is the solution to the system of equations. D. (4, –2) is the solution to the system of equations.

Answer 1

That's the graph

Answer 2

Use substitution rule to find the solution

Answer 3

i dont know substitution rule

Answer 4

Okay, so y = -x + 2
Substitute y into the second equation
And solve for x
Then substitute x back into y = -x + 2
And you are done.