Which relation is a function? {(5, 0), (0, –8), (5, –5)} {(5, 0), (0, 5), (–5, –5)} {5, 0, –8, –5} {(5, 0), (–8, –5), (–8, 5), (–5, –8)}

The third option is a function

Step-by-step explanation:

A function is a relation in which every x value is paired with exactly one y value, meaning that x values cannot repeat within a relation. The 1st and 4th options have repeating X's, and the 2nd option does not have ordered pairs, only integers.

The third option is a function

hope it helped ;)

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb