A -intercept cannot be a number. The -intercept of a line is the point where the line intercepts (intersects or crosses, if you would rather) the -axis. The word "point" being the operative word. A point in is designated by an ordered pair. A -intercept, in general terms, is an ordered pair of the form .
Hence your question, properly posed would be either:
"Write an equation representing a set of ordered pairs that comprise a line with a slope of 6 and a -intercept of "
or
"Write an equation representing a set of ordered pairs that comprise a line with a slope of 6 and a -coordinate of the -intercept equal to "
Is an equation of a line with a slope of and where is the -coordinate of the -intercept.
John
My calculator said it, I believe it, that settles it