Math Graphing from points & Tables

Question

Y=x

X Y How would you solve for Y in this y=mx+b

-3

-1

0

2

Answer 1

if y =mx +b,

then

if x=-3, y=-3m+b

if x =-1, y =-x +b

if x=0 y = b

if x= 2 y =2x+b

if y=x

then

if x=-3, y=-3

if x=-1, y =-1

if x =0, y=0

if x =2, y =2