Which x-value is in the domain of the function f(x) = 2cot(3x) + 4?

Let f(x) = 3x 2 + 5x − 1. Find the expression for f(2a). Simplify.

Find the domain of f

Find f( - 2) if f(x) = 4x? – - x.

Plot the functions x, x2, exp(-x), exp(-x2) on a single graph for x between 0 and 5. Repeat the previous question where you plot the function on four different graphs (two rows and two columns).

determine the domain of f(x)=1 divided by X + 1 

What are the x and y intercepts of the function

The total cost in thousands of dollars of manufacturing x cell phones is given by the cost function C(x) = 0.018x + 1000. Find the total cost (in thousands of dollars) of manufacturing 900 cell phones. Do not use commas or spaces in your answer. For example, if your answer is 1,536.45 thousands of dollars then input only 1536.45. Answer: K

Is the function h(x)=-|x-4| +3 a one -one function?