Completion requirements
Recall from algebra
The equation of a straight line is given by the following formula:
\( y=mx+b \) (11.1)
where
\( m \) - slope (gradient) of the line, \( m=\frac{rise}{run} \)
\( b \) - value of \( y \) when \( x=0 \)
Example
A line with equation \( y=2x+1 \) is shown of Fig. 11.2:

Fig. 11.2 A line with equation