Given a = {(1, , 5}(6, 4)}, b = {(2, 0)(4, , 5)(0, 0)} and c = {(1, 1)(0, 2)(0, 3)(0, , 5)}, answer the following multiple choice question: from the list of sets a, b, and c above, choose the set of relations that correctly represents a function

The sets A and B correctly represent functions.

Step-by-step explanation:

A set of ordered pairs in the format represents a function if for each value of x, there is only one value for y.

The first set is A

A = {(1, 3)(-1, 5}(6, 4)}

For each value of x, there is only one value of y. So this set of relations correctly represents a function.

The second set is B

B = {(2, 0)(4, 6)(-4, 5)(0, 0)}

Again, for each value of x, there is only one value of y. So this set of relations correctly represents a function.

The third set is C

C = {(1, 1)(0, 2)(0, 3)(0, 4)(-3, 5)}

We have three values of y for x = 0. So this set does not represent a function.

4

step-by-step explanation:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!