Find the domain of the function. write your answer as an inequality. or, you may instead write "empty set" or "all reals" as the answer.

Domain is the set of numbers for x we can plug in for this function .

Here x is inside redical sign but there it is " -x "

we know that sqrt of a negative number is an imaginary value

so we need to avoid such values of x which gives a negative value inside redeical .

the term inside redical should be equal or greater than 0 only

so -x >= 0

that means x <= 0

so domain is : all negative real numbers + 0

Answer : (- inifnity , 0]

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.

an altitude of 15,000 feet

step-by-step explanation: