Okay so I have three questions like this but I will only post the one! I have to find thethat matches the data set. In class we are learning how to determine if the equation is linear, , cubic, quartic, etc. using the differences so I think that may be where I need to go but I tried finding the first, second and third differences to see if it was linear, quadratic or cubic but the last point doesn't fit. Should I graph this and go from there or am I missing something?