In Exercises 1-4, use the intercept form to find the general form of the equation of the line with the given intercepts. The intercept form of the equation of a line with intercepts (a, 0) and (0, b) is x / a + y / b = 1, a ≠ 0, b ≠ 0.
1. x-intercept: (3, 0) y-intercept: (0, 5)
2. x-intercept: (−3, 0) y-intercept: (0, 4)
3. x-intercept: (- 1/6, 0) y-intercept: (0, -2/3)
4. x-intercept: (2/3, 0) y-intercept: (0, -2)