Which of the following is true about the function below?

Option A is correct.

Step-by-step explanation:

Given function is,

We need to find Domain and Range of the function.

Domain of the function are the value for which function is defined or exist.

So, Given function becomes undefined if Denominator equals to 0 and when part of square root become negative.

So, first put

  to find value when this denominator become 0.

     (Squaring both sides)

x = - 4

Now put

x + 4 ≥ 0

x ≥ 0 - 4   (transpose 4 to RHS)

x ≥ -4

So, Domain = ( -4 , ∞ )

Clearly from Domain range should be ( 0 , ∞ )

Therefore, Option A is correct.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870