Use the graph to find the value. 
(f + g)(-4)
A. -20
B. -4
C. 8
D. 4
Answer: C
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Find the vertex of the quadratic equation's graph and determine whether the graph opens up or down.y = -2x2 + 3x - 12
A. 
, down
B. 
, up
C. 
, up
D. 
, down
Perform the matrix multiplication.
A. Not defined
B. 
C. 
D. 
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) = 
, y(0) = 7; ?t = 0.2, T = 1; y(t) = 
A. y(1) ? 7.08532; 7.07107 B. y(1) ? 7.08532; 0.20000 C. y(1) ? 7.08532; 0.01425 D. y(1) ? 7.07107; 0.01425
Add.859 + 45 + 9,981 + 7
A. 10,871 B. 10,913 C. 10,682 D. 10,892