Please help! I will mark as brainliest IF answer is right. <3

Yes it is a function ...

Domain = {-7,1,4,5,8}

Range = {3,8,-7,-9,-2}

mark me as brainliest ❤️

Step-by-step explanation:

yes, it is a function. why ?

because every used x value has one unique y value assigned. that is the definition of a function. if any x value could lead to 2 or more different results (y values), it is not a function.

the domain is the interval/set of valid x (input) values to the function.

the range is the interval/set of produced and valid y (functional result) values.

so, the domain is the set of all the x values of the ordered pairs

{-7, 1, 4, 5, 8}

the range is the set of y values corresponding to the used x values

{-9, -7, -2, 3, 8}

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

how many centimeters did the level of the salsa go down by?