Question

select the double number line that shows the other values of distance and elevation. choose 1 answer: a distance (km) 0 1 2 3 4 elevation (m) 0 40 80 120 160 b distance (km) 0 1 2 3 4 elevation (m)

Explanation:

Step1: Find the rate of elevation per distance

From the given initial number lines, when distance is 3 km, elevation is 120 m. So the rate is $\frac{120}{3} = 40$ m per km.

Step2: Check Option A

For Option A, at distance 1 km, elevation should be 40 m; distance 2 km, elevation 80 m; distance 3 km, elevation 120 m; distance 4 km, elevation 160 m. This matches the rate of 40 m/km.

Step3: Check Option B (incomplete, but A is valid)

Since Option A follows the correct rate, it's the right choice.

Answer:

A. Distance: 0, 1, 2, 3, 4 (km); Elevation: 0, 40, 80, 120, 160 (m)