Solve the problem.The table represents a linear function. Find the slope and y-intercept of the line and use your answers to write an equation for f(x). 
A. f(x) = -5.1x + 2.1
B. f(x) = 5.1x - 2.1
C. f(x) = 2.1x + 5.1
D. f(x) = -2.1x + 5.1
Answer: D
Mathematics
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For the given rectangular equation, write an equivalent polar equation.7x - 2y - 9 = 0
A. r = 
B. r2 = 
C. r = 
D. r = 
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Solve formula for the specified variable.P = 2L + 2W
for L
A. L = P - 2W
B. L = 
C. L = 
D. L = P - W
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An expression that occurs in calculus is given. Factor completely.(2x + 1)2 + 3(2x + 1) - 4
A. 2x - 1 B. 2x(2x + 1) C. 2x - 6 D. 2x(2x + 5)
Mathematics
Simplify the expression. Assume that all variables represent positive real numbers.1211/2
A. 5.5 B. 44 C. 22 D. 11
Mathematics