Question

sept 5 1 #4 summative
cb + kb + ab

Explanation:

Step1: Calculate the length of CB

The coordinate of C is - 4 and the coordinate of B is 5. Using the distance formula on a number - line \(d = |x_2 - x_1|\), \(CB=|5-(-4)|=|5 + 4| = 9\).

Step2: Calculate the length of KB

The coordinate of K is - 2 and the coordinate of B is 5. Using the distance formula \(d = |x_2 - x_1|\), \(KB=|5-(-2)|=|5 + 2| = 7\).

Step3: Calculate the length of AB

The coordinate of A is 2 and the coordinate of B is 5. Using the distance formula \(d = |x_2 - x_1|\), \(AB=|5 - 2|=3\).

Step4: Calculate the sum

Add the lengths together: \(CB+KB + AB=9 + 7+3=19\).

Answer:

19