Question

How do you find five ordered pairs of y=-2x?

Answer 1

Pick 5 arbitrary values for `x` and for each `x` value calculate the the y value of the corresponding pair by applying the equation.

Explanation:

For example if we choose as our `x` values:
`color(white)("XXXX")` `{ 0, 1, 2, 3, 4}`

For `x=0`
`color(white)("XXXX")` `y= -2(0) = 0`
`color(white)("XXXX")` `color(white)("XXXX")` `rarr` ordered pair: `(0,0)`

For `x=1`
`color(white)("XXXX")` `y= -2(1) = -2`
`color(white)("XXXX")` `color(white)("XXXX")` `rarr` ordered pair: `(1,-2)`

For `x=2`
`color(white)("XXXX")` `y= -2(2) = -4`
`color(white)("XXXX")` `color(white)("XXXX")` `rarr` ordered pair: `(2,-4)`

For `x=3`
`color(white)("XXXX")` `y= -2(3) = -6`
`color(white)("XXXX")` `color(white)("XXXX")` `rarr` ordered pair: `(3,-6)`

For `x=4`
`color(white)("XXXX")` `y= -2(4) = -8`
`color(white)("XXXX")` `color(white)("XXXX")` `rarr` ordered pair: `(4,-8)`