Find the value of the missing coordinate that makes the ordered pair a solution to the equation.y = 3x - 16(-8, 
)
A. (-8, -40)
B. (-8, -8)
C. (-8, 8)
D. (-8, -24)
Answer: A
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = (-8x - 8y)5
A. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
B. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c ? 0
D. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
We locate the position of a car driving on an east-west highway as distance east. If the car is driving west at a speed of 60 miles per hour, what can be said about velocity?
A. Velocity is 60 miles per hour. B. Velocity is -60 miles per hour. C. Velocity is 0 miles per hour. D. None of the above.
Use the sum/difference identities to simplify the expression. Do not use a calculator.cos 
cos 
+ sin 
sin 
A. cos 
B. cos 
C. cos 
D. cos 
Solve the number problem by finding the value of the unknown number.When twice a number is subtracted from 26, the result is 14.
A. 5 B. 13 C. 6 D. 9