Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. x + y + z = -2 x - y + 5z = -184x + y + z = -5
A. (-1, 2, -3)
B. (-3, 2, -1)
C. (-3, -1, 2)
D. No solution
Answer: A
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Determine whether the scatter diagram indicates that a linear relation may exist between the two variables. If a linear relation does exist, indicate whether the slope is positive or negative.Draw a scatter diagram of the given data. Find the equation of the line containing the points 
and 
Graph the line on the scatter diagram.
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A. 
y = 2.17x + 12.88
B. 
y = -2.39x + 13.38
C. 
y = -2.17x + 12.88
D. 
y = -1.62x + 10.41
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(x + 4)(x + 1) = 28
A. {-4, -1} B. {1, 4} C. {-3, 8} D. {-8, 3}
Simplify the fraction to lowest terms.
?
?
A. 
B. 
C. 
D. 
E. Does not simplify further.
?Use any method to solve the system of linear equations, find (x,y).
?
?
?
A. ?(3, 4) B. ?(4, -3) C. ??(-3, -4) D. ??(-3, 4) E. ??(4, -3)