Use the table in 3.2 to draw a graph showing the relationship between the number of hours travelled (x) and the cost of the trip (y) on the grid provided.

The horizontal axis (x-axis) represents the "Number of hours ($x$)".
The vertical axis (y-axis) represents the "Cost of trip ($y$)".

• For the x-axis (Number of hours): Let each large square on the grid represent 1 hour. Label the major grid lines as 0, 1, 2, 3, etc.
• For the y-axis (Cost of trip): Let each large square on the grid represent R20. Label the major grid lines as 0, 20, 40, 60, 80, 100, 120, 140, etc.

The table values are:

• $(x=0, y=50)$
• $(x=1, y=80)$
• $(x=2, y=110)$
• $(x=3, y=140)$

Plot these points on the grid:

• At $x=0$, plot a point at $y=50$. (This will be halfway between the R40 and R60 marks on the y-axis).
• At $x=1$, plot a point at $y=80$.
• At $x=2$, plot a point at $y=110$. (This will be halfway between the R100 and R120 marks on the y-axis).
• At $x=3$, plot a point at $y=140$.

Since the relationship $y = 30x + 50$ is linear, the points will form a straight line. Draw a line through all the plotted points.

The graph should show the x-axis labeled "Number of hours (x)" with a scale (e.g., 1 large square = 1 hour) and the y-axis labeled "Cost of trip (y)" with a scale (e.g., 1 large square = R20). The points (0, 50), (1, 80), (2, 110), and (3, 140) should be plotted and connected by a straight line.