A quadratic function is defined by f(x) = x^2 - 8x - 4. Which expression also defines f and best reveals the maximum or minimum of the function?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Need on this geometry question. explain how you did it.

What number line represents the solution set for the inequality -1/2 greater than or equal to 4