A quadratic function passes through the points (-1,3), (2, - 4) and (5, 4). Which of the system of equations below could
solved in order to find the equation of the parabola?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Answer for 10 points show work you guys in advanced < 3