y = -x + 3
- When x = 0, y = 0 + 3 = 3. So, yes, (0,3) is one point
- When x = 1, y = -1 + 3 = 2. So a second point is (1, 2), not (1,3)
Plot (0,3) and (1,2) on the xy plane, then draw the line through them.
Another way to do it is to remember that the equation of a line is y = mx + b, where m is the slope of the line and b is the y-intercept (where the line crosses the y-axis). IN your equation, m = -1 and b = 3. So (0,3) is the y-intercept. The slope (m) is -1. To find another point, start at (0,3) and go down one then over one, which brings you to (1,2).
