Question

Andrew took his younger brother to the park. Here is what they did:

1. Walked across the parking lot to the playground

2. Climbed a wooden ladder to a look-out tower

3. Walked across a flat bridge to the slide

4. Rode the slide down to the ground

5. Ran to the other side of the playground to a wooden ramp

6. Walked up the ramp to the fireman’s pole

7. Grabbed the pole and slid down to the ground

If Andrew graphed his fun at the park, which parts would show a slope of zero?

1 and 2

1 and 4

1, 3, and 5

1,4, and 5