Answer:
Explanation:
Question 12)
Slope between the points:
- A(a + b, 4m - n) and B(a - b, m + 2n)
Use slope formula:
- Slope = (m + 2n - 4m + n)/(a - b - a - b) =
- (-3m + 3n)/(-2b) =
- (-3)(m - n)/(-2)b
- 1.5(m - n)/b
Question 13)
Slope between the points:
- C(3c - d, s + t) and D(c - 2d, s - t)
Use slope formula:
- Slope = (s - t - s - t)/(c - 2d - 3c + d) =
- (-2t)/(-2c - d) =
- (-2)t/(-1)(2c + d)
- 2t/(2c + d)