Which set of ordered pairs represents y as a function of x?

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  A.  {(2, -1), (4, -2), (6, -3), (8, -4)}

Step-by-step explanation:

A set of ordered pairs that is a function will have no repeated x-values.

Here, the x-values are ...

  a) {2, 4, 6, 8} . . . no repeats, a function

  b) (0, 1, 1, 2} . . . 1 is repeated; not a function

  c) {3, 3, 4, 4} . . . 3 and 4 are repeated; not a function

  d) {1, 1, 2, 2} . . . 1 and 2 are repeated; not a function

The first of the listed choices represents y as a function of x.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

c: lkllmn.

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