Solve the equation.
(10x - 20) = 
(8x - 4)
A. 
B. -1
C. -6
D. 1
Answer: B
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The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(- 1, 0)
A. decreasing B. constant C. increasing
Use the graph to obtain the graph of the reciprocal function. Give the equation of the function for the graph that you obtain.y = 2 cos 3?x
A. y = 2 cot 3?x
B. y = 2 sin 3?x
C. y = 2 sec 3?x
D. y = 2 csc 3?x
Solve the application involving finding the equation of a line.If Marco hired a plumber for 5 hours the total cost would be $280. If he hired the same plumber for 12 hours , the total cost would be $630. Assume a linear relationship between the cost, y, in dollars and the number of hours worked, x. Find an equation in slope-intercept form that models the relationship between the cost and the number of hours worked.
A. y = 50x + 60 B. y = 50x + 30 C. y = 35x + 30 D. y = 50x + 30x
Simplify. Assume that all variables represent positive numbers.
A. x - 
B. x2 - 4x + 4
C. 
- 
D. x - 2