Given f(x) and g(x), find (fog)(x) and (gof)(x) f(x) = 2x g(x) = x+3

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function