Lines

1. For each line fill in your answers to the following questions in the table below: (Line E has been done for you.)

(i) Write down the coordinates (0; c) of the point of intersection of the line with the y-axis (the y intercept).

(ii) Choose two points on the line (x_1;y_1), (x_2;y_2). Find the gradient of the line from the formula m=\frac{y_2-y_1}{x_2-x_1}.

(iii) Use the values of c and m you have found to write the equation of the line in the form y = mx + c.

2. What do you notice when you compare the equations of these lines?

Download a worksheet here.

3. Copy the graphs below and fill in the coordinates of the points.

What are the gradients of the x-axis, the y-axis and the other 4 lines shown?

Write down the equations of the x-axis, the y-axis and the other 4 lines shown.

Download the LINES Home               Learning Guide here.

See the Notes for Teachers