I forgot to mention in my first post that I'm assuming a.) goes like this

dy/dx = 4t+3 / 2 and then just plug in 2 for t to get 11/2 as the answer but we never did anything like that so I'm not sure, just makes the most sense, and then b I'm not sure what to do, I was gonna remove the parameter and then see if I could come up with something but I got lost.