What the square root of 54

Which of the following graphs represents the function f(x) = 2^x

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

Find the axis of symmerty for x y=x squared -4x-8