12.8 + 6 (n-0.5) n= 3.7

Step-by-step explanation:

Let the equation of the line is,

y = mx + b

Here, m = slope of the line

b = y intercept

Since, m = -

Equation of the line will be,

y =

Since, a point (3, -6) lies on the line,

-6 =

b = -6 + 1.5

b = -4.5

Equation of the line will be,

Table for the points on the graph,

x      -4         -3         -2        -1          0        

y      -2.5      -3       -3.5      -4       -4.5    

Plot these points and join them to get the graph of a line.