Define the modulus function. What is
its domain? Draw a rough sketch.

Define electric power. What is its Si unit?

Define surface energy. What is its SI unit?

Define vital capacity. What is its significance?

Shows a relationship between the sets P and Q. write this relation roster from. What is its domain and range ?

Draw the graph of the function f(x)=|x| . Also write its domain and range.

Consider the function f(x)={(1-x,x 0):} Draw a rough sketch of f(x) .

Define the terms-work function and threshold frequency.

Consider the function f(x)={(1-x,x 0):} Draw a rough sketch of f(x) . What is your inference from the graph about its continuity. Verify your answer using limits.