Solve graphically.3x + y = 6x = -2y
A. No solution
B. (2.4, -1.2)
C. Infinitely many solutions
D. (2.4, 1.2)
Answer: B
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Solve the problem.Some values of linear functions f and g are listed in the table below. Find the solution of a system of two equations that describes the functions f and g. HINT: Use the linear regression and graphing functions on a calculator to find and graph equations of f and g.
Find an approximate solution of a system of two equations that describe the functions f and g.
A. (2.8, 31.0) B. (2.7, 39.5) C. (3.8, 36.5) D. (3.1, 28.6)
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(8x4 - 17x3) - (12x4 + 11x3)
A. -32x7 B. 20x4 - 6x3 C. -4x4 - 28x3 D. -4x4 - 6x3
Solve.19 ? x = 1672
A. 87 B. 83 C. 85 D. 88
Solve the problem.For four airplane trips you experienced the following delays: 32 minutes, 
What was the average delay?
A. 121 min B. 120 min C. 29 min D. 30 min