The line of symmetry for the quadratic equation y = ax2 - 2x - 3 is x = 1. what is the value of "a"?

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

He concluded that a heavier object dropped from the same height as a lighter object will land

Find the solution of each of the following.