Solve the problem.Which of the ordered pairs is the only possible solution for the system whose graphs are shown in the viewing window of a graphing calculator?
A. (-8, -30)
B. (0, -22)
C. (8, -30)
D. (-22, 0)
Answer: B
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Solve.
= -1
A. 3 B. 1 C. -1 D. No solution
Solve.For the production of a special product, a substance must be heated to 520°F. Convert this temperature to degrees Celsius, rounding to nearest tenth.
A. 285.3°C B. 942.4°C C. 271.1°C D. 968°C
Find the maximum and minimum values of the function and the values of x and y for which they occur.P = 6x + 7y, subject to2x + 3y ? 12,2x + y ? 8,x ? 0,y ? 0.
A. Maximum: 32 when x = 3 and y = 2; minimum: 0 when x = 0 and y = 0 B. Maximum: 28 when x = 0 and y = 4; minimum: 0 when x = 0 and y = 0 C. Maximum: 28 when x = 0 and y = 4; minimum: 24 when x = 4 and y = 0 D. Maximum: 24 when x = 4 and y = 0; minimum: 0 when x = 0 and y = 0
Write an equation in slope-intercept form of a line satisfying the given conditions.Slope - 
; y-intercept 3
A. y = 
x + 3
B. y = - 
x + 3
C. y = - 
x - 3
D. y = 
x - 3