Answer the questions about congruent triangles.

What are the domain and range of the function? f(x) = -4 (sqrt)x

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

The variable in a relation who’s value depends on the value of the independent variable is called what?