Answer:
C
Step-by-step explanation:
y=1/x, the reciprocal is the same. Reciprocal would be reflected across y=x
Answer:
<h2>A</h2>
Step-by-step explanation:
la recta:
(*)
P=(xo,yo)

substituindo:

Seja P=A=(xo=1,yo=3), utilizando a formula (*)

Answer:
Step-by-step explanation:
Answer:
The value of the Rational expression when
is: 
Step-by-step explanation:
For this exercise is important to remember:
- When a negative number is raised to an even power, the result will be positive.
- The multiplication of signs:

Then, given the following Rational expression:

You need to follow these steps in order to find its value when
:
1. Substitute the given value of "x" (
) into the expression:

2. Evaluate and simplify:

Step 1 ) Separate the 4 and x.

↓

Step 2 ) Simplify the square root of 4.

↓

Step 3 ) Simplify.

↓

This is now in its simplest form, so the final answer is...

or it could be...

Either one is correct. Only difference is one is in simplest form and one isn't.
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- Marlon Nunez