Write a formula to express the relationship. Use k as the constant of variation.The area of a triangle varies jointly as the base and the height.
A. A = bh
B. A = 
C. A = kbh
D. A = k(b + h)
Answer: C
Mathematics
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Use the table to solve the problem.The cost, in dollars, of a cab ride for x miles is given by the function f in the following table.
After 1 mile has been driven, what is the cost of each additional mile?
A. $0.52 B. $0.60 C. $0.63 D. $0.48
Mathematics
Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics