Question

1/2 Marks
Find the gradients of lines A and B.

Answer 1

Line A = 3

Line B = - 1

Explanation:

To find the gradient, you need two points on a line right. The formula for gradient is

`(y2 - y1)/(x2 - x1)`

So on line A, try to find 2 points (coordinates)

You have (-2,1) , (-1,4) , (0,7)

Choose any two

Let's say (-1,4) and (0,7)

Gradient =

`(7 - 4)/(0 - - 1) = (3)/(1) = 3`

Gradient of line A is 3

For line B, let's take (1,7) and (2,6)

Gradient =

`(7 - 6 )/(1 - 2) = (1)/( - 1) = - 1`

Gradient of line B = - 1