Which of the following best describes the ordered pairs listed below?
(-1, -3), (3, -7), (7, -11), (9, -13)
a. neither a relation nor a function
b. both a relation and a function
c. function only
d. relation only

The answer is B.)

This is because Since there is one value of y

for every value of x in  (-1,-3),(3,-7),(7,-11),(9,-13) , this relation is a function.

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let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!