For b, all u have to do is draw a vertical line at 1 on the x-axis.

For c, you were just careless. Read from the graph and you'll notice that at D, x=4 and y=-1.

For d, finding the area of a parallelogram is exactly like finding the area of a rectangle. Horizontal length multiplied ny vertical height. In this case, it would be 6×3=18. That's your area.

Lastly for e, gradient of AB is zero. Since you know that gradient is equal to rise divided by run, you can use that to understand. The rise equal zero because from A to B, there is no increase in Y axis. And run equals negative 6 because from A to B, you move back 6 cm. 0 divided by 6 equals to zero and therefore, gradient=0.

I hope this helps. :)

Thanksss

You're most welcome. :)