Write three equations whose graphs are the same line as the equation 3x+2y=7

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.