y=-2x with 3 orderderd pairs and plotting the points

Question

how do you get 3 ordered pairs when plotting  on graph

Answer 1

Since x can be any real number, just pick any three, compute y, and then you will have three ordered pairs of (x,y).

 

Example:  Pick x = 0,1, and 2

 

Then the three y's are -2(0) = 0, -2(1) = -2, and -2(2) = -4

 

The ordered pairs are (0,0), (1,-2), and (2,-4).