Which statements about the graph of the function f(x)=2x^2-x-6 are true?

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?