Eli left his house one afternoon to study at the library. The
graph shows his distance, in miles, away from his house
as a function of time, in minutes.
What could explain what happened when the time was
equal to 120 minutes?
O
Eli's Trip to the Library
Eli arrived at the library.
Eli rode his bicycle home from the library.
Eli rode his bicycle to the store, getting farther away
from his house.
Eli continued to study at the library for 13 more minutes.
Distance from Home (miles)
15 30 45 60 75 90 105 120135
Time (min)
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statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.