What is the location of the point on the number line that is [tex]\frac{2}{7}[/tex] of the way from [tex]A = 18[/tex] to [tex]B = 4[/tex]?

A. 14
B. 15
C. 13
D. 16



Answer :

To determine the location of the point that is [tex]\(\frac{2}{7}\)[/tex] of the way from [tex]\(A = 18\)[/tex] to [tex]\(B = 4\)[/tex], we can follow these steps:

1. Calculate the distance from [tex]\(A\)[/tex] to [tex]\(B\)[/tex]:
The distance from [tex]\(A\)[/tex] to [tex]\(B\)[/tex] can be found by subtracting [tex]\(A\)[/tex] from [tex]\(B\)[/tex]:
[tex]\[ \text{Distance} = B - A = 4 - 18 = -14 \][/tex]
The negative sign indicates that [tex]\(B\)[/tex] is to the left of [tex]\(A\)[/tex] on the number line.

2. Determine the fraction of the distance:
Since we are dealing with [tex]\(\frac{2}{7}\)[/tex] of the distance, multiply the distance by this fraction:
[tex]\[ \frac{2}{7} \times \text{Distance} = \frac{2}{7} \times -14 = -4 \][/tex]
This result shows that we are moving 4 units to the left from [tex]\(A\)[/tex].

3. Find the location on the number line:
To find the actual location, subtract this value from [tex]\(A\)[/tex]:
[tex]\[ \text{Point location} = A + \left(\frac{2}{7} \times \text{Distance}\right) = 18 + (-4) = 14 \][/tex]

So, the location of the point that is [tex]\(\frac{2}{7}\)[/tex] of the way from [tex]\(A = 18\)[/tex] to [tex]\(B = 4\)[/tex] is [tex]\(14\)[/tex].

Thus, the correct answer is:

A. 14