Yvaries inversely with x
y=2.5 when x=5
what is the value of k, the constant of inverse variation?

For the function, f(x) = -5x 2, find f(-4).

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

What is the solution of the systems of equations? y=2/3x+3 x=-2