So, you need to know that the slope stays where it is, and that the 6 is not part of the final answer, so get rid of it. y=2x+b Now, submit x in for x, and y in for y. 3=2(1)+b 3=2+b 1=b
Put this in for the equation missing the b, y=2x+1 Now check it; if you put 1 in for x, does y=3?
