Is it a function and domain and range:

{(2,-4),(6,-2),(4,-2),(5,-4,(-8,-6) }

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  yes, it is a function

  domain: {-8, 2 ,4, 5, 6}

  range: {-6, -4, -2}

Step-by-step explanation:

The domain is the set of first values of the ordered pairs: {2, 6, 4, 5, -8}. We often like to see them in order:

  domain: {-8, 2 ,4, 5, 6}

The range is the set of second values of the ordered pairs.

  range: {-6, -4, -2}

There are no repeated values in the domain, so the relation is a function.

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

ege

step-by-step explanation:

egge