Given the system of equations, what is the value of the system determinant? x + y = 8 x - y = 10 0 -1 -2
2 answers:
Each X and Y in the equations don't have a number in front of them so they are all considered 1.
D = 1*(-1) - 1*(-1) = -1 -1 = -2
The answer is -2
Answer:
-2
Step-by-step explanation:
We need to set up the matrix to find the determinant
a b
c d
To find the determinant we take ad - bc
x + y = 8
x - y = 10
Take the coefficients of the x and y terms
1 1
1 -1
1 (-1) - (1) *1
-1 - 1
-2
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