Which method for solving quadratic equations cannot always be used? graphing quadratic formula factoring completing the square

3. solve by graphing: y = 2x + 6 x + y = -3

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

Find the value of x to the nearest tenth. a. 4.5 b. 5.4 c. 6.3 d. 7.2