Final Answer:
The distance between points G(-9, -12) and H(-9, 6) is 18 units. Thus, the expression representing this distance is simply
.
Explanation:
To find the distance between two points
and
in a coordinate system, you can use the distance formula:
![\[ d = √((x_2 - x_1)^2 + (y_2 - y_1)^2) \]](https://img.qammunity.org/2024/formulas/mathematics/college/c11pfjm3s03a2uhvm93e73mvj3qxrtscm2.png)
In this case, the points are \(G(-9, -12)\) and \(H(-9, 6)\). Plug these values into the formula:
![\[ d = √((-9 - (-9))^2 + (6 - (-12))^2) \]](https://img.qammunity.org/2024/formulas/mathematics/college/jkzc4hw49eesugs9fzx7durk9g1638sb19.png)
Simplifying:
![\[ d = √(0^2 + 18^2) \]](https://img.qammunity.org/2024/formulas/mathematics/college/nj06ci6wyxcotnwayoxmoy09e5xr3ox7ya.png)
![\[ d = √(0 + 324) \]](https://img.qammunity.org/2024/formulas/mathematics/college/w111ehrocw8z1ruozia35r1ucnrnad636a.png)
![\[ d = √(324) \]](https://img.qammunity.org/2024/formulas/mathematics/college/h6j2acwfmbtg7ni88w9p0f29dgndhwaiyu.png)
![\[ d = 18 \]](https://img.qammunity.org/2024/formulas/mathematics/college/7eh9ubuisyclpmpmvpzvfth33c38ym05zm.png)
So, the distance between point G and point H is 18 units. Therefore, the expression that represents this distance is (18).