I need help with this. Using the graph, find this information about the child’s movement in the horizontal (x) direction:

the best trigonometric function to start with

the amplitude

the period

any horizontal displacement of the graph

the vertical displacement of the graph, if any

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