Answer:

Step-by-step explanation:
An equation of a line is given
, where m is the gradient or 
The rise indicates the change in value of y (vertical change in the graph).
The run indicates the change in value of x (horizontal change in the graph).
Let point 1 of the graph be (x,y) = (0,-34) and point 2 be (x,y) = (20,0).
Substitute point 1 into the graph to get the constant c.



∴ The equation of the line is, 
It means the same as it sounds like. It means that it joins others .
=10(4+13x-5)
=10(-1+13x)
=-10(13x)
=-130x
Not a function no alike pattern between c and y