The function can be used to determine the height of a ball after t seconds. Which statement about the function is true? The domain represents the time after the ball is released and is discrete.
The domain represents the height of the ball and is discrete.
The range represents the time after the ball is released and is continuous.
The range represents the height of the ball and is continuous.

Documentation and time management

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.