21. The table below shows some values of a function
x f(x)
0 -24
1 -13
2 -4
3 3
4 8
5 11
6 12
7 11
8 8
9 3

Which of the following BEST shows the values in the domain when the function is increasing?
A. between 0 and 6
B. between 3 and 9
C. between 3 and 6
D. between 6 and 9

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap