Question

Given `y = 3x`, what is (0, ____) (-1,____) (7,____) ?

Answer 1

`(0,0),(-1,-3),(7,21)`

Explanation:

`"to evaluate the y-coordinates substitute the given values"`
`"of x into "y=3x`

`x=0rArry=3xx0=0to(0,0)`

`x=-1rArry-3xx-1=-3to(-1,-3)`

`x=7rArry=3xx7=21to(7,21)`