Question

What rule changes the input numbers to output numbers?

input / output
1/-6
2/-4
3/-2
4/0

Answer 1

Let o/p variable be y
and i/p be x
let y=mx+c
m and c are constants , we have to find
when i/p is 4 o/p is 0
y=0 , x=4
0=4m+c
so c=-4m
when x=3 y=-2
-2=3m+c
c=-4m
-2=3m-4m
-2=-m
m=2
we have c=-4m
c=-8
so we get
y=2x-8

Answer 2

thank you soooo much

Answer 3

welcome, did you understand it?

Answer 4

i think so