Please explain and I’ll give brainliest

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5

Pls never taught i’m really confused and i rlly need