Which of the following functions is symmetric about the y-axis? A. f(x) = 25 – 2x3
3x
B. f(x) = 2x3
3x2 - 4x + 4
c. f(x) = 625 – 23
D. f(x) = 26 – 3x4 – 4x2

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

What is the value of x when x + 7 = 21?

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52