Algebra 1 , need sum help .

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

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The graph of y x3 is translated so that the point (1. 1) is moved to (1, 4). what is the equation of the new graph?