You cannot write the equation of the line that has a -intercept of 2. In the first place, there are an infinite number of lines that have a -intercept of 2, and each of them has an infinite number of equation representations. The best that can be done is to write an equation that represents the family of lines with a -intercept of 2.
Where represents any of the infinite possible slopes a line only described as having a -intercept of 2 could have.
John
My calculator said it, I believe it, that settles it