Question

Refer to a number line that is not pictured here. Point$A$has coordinate 2 and point$B$has coordinate 5.

What is the coordinate of a point that is on $\overrightarrow{AB}$and is 4 units from$B$?

Short answer

The required coordinate is 9.

Step-by-step solution

Step 1. Make the number line.

Make a number line that consists of two points $A$ and $B$ according to the provided information and a number 0 between $A$ and$B$

Step 2. Observe the number line.

The mentioned point is 4 units far from the point $B$ therefore to reach the required point the gap should be added to the coordinate of $B$.

Step 3. Make the conclusion.

If the addition between the coordinate of $B$ and 4 performed, then it will return a value 9 which is the required coordinate.