Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(5, 4)}
B. {(-5, -4)}
C. no solution; ?
D. {(-5, 4)}
Answer: D
Mathematics
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Simplify.240 ÷ 5 - 2
A. 46 B. 80 C. 237 D. 233
Mathematics
Solve the system using the elimination method or a combination of the elimination and substitution methods.x2 - xy + y2 = 32x2 + xy + 2y2 = 12
A. {(2, 1), (1, 2)} B. {(2, 1), (-2, -1), (1, 2), (-1, -2)} C. {(1, 0), (-1, 0)} D. {(2, 0), (-2, 0), (1, 0), (-1, 0)}
Mathematics
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = x2 + 3
A. 
B. 
C. 
D. 
Mathematics
Evaluate, if possible-
A. -10 B. -50 C. 10 D. Not a real number
Mathematics