Use the interactive tool to graph the line given the following information:     coordinates (1,–3)     slope of –2 based on your investigation, what is the value of b for the point (0,b)?

Finding the equation of the line, it is found that the value of b is -1.

----------------------------

The equation of a line is given by:

In which:

----------------------------

The value of b is -1.

A similar problem is given at link

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

the answer is y = 11.54

hope this : )