The map coordinates of a campground are (1, 4), and the coordinates of a fishing pier are (4,7). Each unit on the map represents 1 kilometer. If Alejandro walks in a straight line from
the campground to the pier, how many kilometers, to the nearest tenth, will he walk?
4.2 kilometers
3.5 kilometers
12.1 kilometers
6.0 kilometers

A

Step-by-step explanation:

So, let’s find the distance between the two points.

We will use the distance formula: “

We will let (1, 4) be (x₁, y₁) and (4, 7) be (x₂, y₂). Substitute:

Evaluate:

Evauate:

So, the distance between the two points is 4.2 units.

Since each unit is equivalent to one kilomeer, Alejandro wil need to walk approximately 4.2 kilometers.

So, our answer is A.