Question

Examine the following table of points, which are all on a certain line.

x y

−2 4

0 2

1 1

3 −1


What is the slope of this line?


Enter your answer as a number, like this: 42


Or, if the slope is undefined, enter a lowercase letter "u," like this: u

Answer 1

9514 1404 393

Answer:

  -1

Step-by-step explanation:

The slope formula is useful:

  m = (y2 -y1)/(x2 -x1)

  m = (2 -4)/(0 -(-2)) = -2/2 = -1

The slope of this line is -1.

_____

The points on the line drop 1 unit for each 1 unit to the right.

  m = rise/run = -1/1 = -1