Answer: The required distance between my house and the subway stop is 8 units.
Step-by-step explanation: Given that a grid shows the positions of a subway stop and my house. The subway stop is located at (-5,2) and my house is located at (-9,9).
We are to find the distance, to the nearest unit, between my house and the subway stop.
We will be using the following formula :
Distance formula : The distance between the points (a, b) and (c, d) is given by
![D=√((c-a)^2+(d-b)^2).](https://img.qammunity.org/2020/formulas/mathematics/middle-school/91d7z9wzq55yi4u5e8zyq6p41yo5iqx9mf.png)
Therefore, the distance between the points (-5, 2) and (-9, 9) is given by
![D\\\\=√((-9-(-5))^2+(9-2)^2)\\\\=√((-9+5)^2+7^2)\\\\=√(4^2+49)\\\\=√(16+49)\\\\=√(65)\\\\=8.06.](https://img.qammunity.org/2020/formulas/mathematics/middle-school/306f56ligooscgto60ek34x2bqd0inhrmh.png)
Rounding to the nearest units, we get
D = 8 units.
Thus, the required distance between my house and the subway stop is 8 units.