F(x) = x2 – 2-1 Over which interval does f have an average rate of change of zero?
Choose 1
А
-1< <2
B
--5 < < < 5
-3 << -2
D 2

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