Q.4. Which of the following lines have a positive gradient and which have a negative gradient:

Dear Student,

Gradient of line is also called the slope of line.
$$\begin{gathered} It is given by Gradient=\frac{change in y coordinates}{change in x cordinates} \\ hence all lines moving upward will have positive slope. \end{gathered}$$

Hence Line A,C,F are having positive gradient.
Regards,