Lulu marks the points (1, 7) and (6, 2) on the coordinate plane. What is the distance between these two points, rounded to the nearest tenth of a unit?(1 point)

Responses

6.2 units

10.3 units

7.1 units

7.8 units

1 answer

To find the distance between the points (1, 7) and (6, 2), we use the distance formula:

\[ d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \]

Where \((x_1, y_1) = (1, 7)\) and \((x_2, y_2) = (6, 2)\).

Substituting in the coordinates:

\[ d = \sqrt{(6 - 1)^2 + (2 - 7)^2} \]

Calculating the differences:

\[ d = \sqrt{(5)^2 + (-5)^2} \]

Calculating the squares:

\[ d = \sqrt{25 + 25} \]

Adding:

\[ d = \sqrt{50} \]

Calculating the square root:

\[ d \approx 7.071 \]

Rounding to the nearest tenth:

\[ d \approx 7.1 \]

Therefore, the distance between the two points is 7.1 units.