-- As the line moves from left to right, it rises. So you know that its slope is positive. (All 4 choices have positive slopes, so that doesn't help.)
-- From the place where the line crosses the x-axis to the place where it crosses the y-axis, it moves 2 units forward and also rises 2 units. So you know that its slope is (2/2) = 1 . (A. and C. both have slopes of 2, so it can't be either of those.) (B.and D. both have slopes of 1,so it could be either of those.)
-- The line does not go through the origin. So you know that its y-intercept is not zero. (A. has no y-intercept, so that can't be it.)
-- The line crosses the y-axis at y=2, so you know that its y-intercept is 2 . (B. has y-intercept of -2, so that can't be it.) (C. and D. both have y-intercept of 2, so it's one of those.) (But the slope has to be 1, and C. has slope of 2.) (So it must be <em>D.</em>)
