Question

the graph represents the heights of two climbers on a climbing wall over a 12 - minute time period. which statement is true about the climbers heights? abby’s climbing height was decreasing when bryn’s climbing height was increasing; both climbers rested on the wall at a constant height for 2 minutes; the heights of both climbers increased, then decreased, with no rest at a constant height; brynn was resting at a constant climbing height when abby’s climbing height was decreasing

Explanation:

1. Analyze Abby's climb (red line): Height increases until 4 min, stays constant (rests) 4-6 min, increases to 23 ft at 7 min, then decreases to 0 at 12 min.
2. Analyze Brynn's climb (blue line): Height increases until 5 min, stays constant (rests) 5-7 min, then decreases to 0 at 10 min.
3. Evaluate each option:

• "Abby's height decreasing when Brynn's increasing": False, Brynn's height never increases while Abby's decreases.
• "Both rested for 2 minutes": True, Abby rests 4-6 min (2 min), Brynn rests 5-7 min (2 min).
• "No rest at constant height": False, both have flat (resting) segments.
• "Brynn resting when Abby's height decreasing": False, Brynn stops resting at 7 min, Abby's height starts decreasing after 7 min.

Answer:

B. Both climbers rested on the wall at a constant height for 2 minutes.