The line equation in slope-intercept form is , where m is the slope and b is the y-intercept.

First find the slope of the line.

                           (Substitute )

                                 (Product of two same signs is positive)

                                 (Apply additive identity property: )

                                    (Add: 1 + 1 = 2)

Next find the y-intercept.

The line crosses the y-axis at (0, 1).

So, the y-intercept is 1.

Replace m with and b with 1 in the equation .

The slope-intercept form line equation is .