Question

Hi guys..............

Answer 1

Answer:

• 12) 1.5(m - n)/b

• 13) 2t/(2c + d)

Step-by-step 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)