4) If an object is dropped from a tower of unknown height, the velocity of the object after t seconds
can be obtained by multiplying t by 32 and adding 10 to the result. Therefore, you can express V as
a linear function of t. Find the domain of this function.
Step 1
Let's find that equation!!
define
v as the velocity
Also
"the velocity of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result" in math words ,it is

where v is the velocity, t the time in seconds
now, we have our function, now we need to find its domain
remember:
The domain of a function f (x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes
so, for us
t can take any value, in other words , there are not values for x to make a indetermination
so, t can take any value, the domain is all the real numbers

I hope this helps you