Consider the following quadratic function and its graph. f(x) = x2 – 4x – 21 On a coordinate plane, a parabola opens up. It goes through (negative 4, 8), has a vertex around (2, negative 21), and goes through (8, 8). What is the solution of the following quadratic inequality? x2 – 4x – 21 ≤ 0

Which function has an inverse function? a. f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²

Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next

Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176