Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
A. x = -3, y = -4
B. x = 4, y = 3
C. x = -4, y = -3
D. x = -3, y = 4
E. no solution
Answer: C
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Use the graph to estimate the specified limit.Find 
f(x)
A. 6 B. 0 C. -1 D. does not exist
Use a calculator or computer program to approximate the value of y(T) using Euler's method with the given time step on the interval [0, T]. Then, using the exact solution given, find the error in the approximation to y(T) (only at the right endpoint of the time interval). Round answers to five decimal places, do not use intermediate rounding.y'(t) = -3y, y(0) = 1; ?t = 0.2, T = 1; y(t) = e-3t
A. y(1) ? 0.01024; 0.20000 B. y(1) ? 0.01024; 0.04979 C. y(1) ? 0.02560; 0.02419 D. y(1) ? 0.01024; 0.03955
Add.
A. 62 B. 51 C. 61 D. 60
Find the graph that matches the given system of equations.3x + y = 13
A. 
B. 
C. 
D. 