Respuesta :

Using slope-intercept form 
y=mx+b

y being the y value of a co-ordinate
x being the x value of a c-ordinate
m being the slope
b being the y intercept

You've been given slope of 1
and point (0,2) is the yintercept

Hence 
y= x +2

Or USE ALGEBRA
IT"S SUPER FUN!!!!

x=0
y=2
m=1
b=?

y=mx+b
2=1(0)+b
b=2

Hence 
y=x+4


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y-2= 1(x-0) or

y=1x+2