Q5. (a) On a sheet of graph paper, using a scale of 1 cm to represent 2 unit on the x-axis and 1 cm to represent 2 units on y-axis, draw the graph of the following straight lines.

(i) y = -1/2x + 4

(ii)y = 2x + 3

(b) What values of x are appropriate for values of y to be a whole number in both the graphs?

(c) What do you notice about the two lines drawn in part (a)

(d) Using a protractor, measure the angle between the two lines and share your observations.

(e) What are the gradients of the two lines? Is there any relationship between them? Share your observations.