What is the value of the rational expression below when xis equal to 4? X + 20
X +4
A. 5
O B. 6
O c. 3
O D. 4

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Simplify the expression. -2/5(10+15m-20n)

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)