The rationalized form of the expression will be 
<h3>Rationalization of rational functions</h3>
Given the rational function

Multiplying by the conjugate of the denominator

Simplifying further will give:

Hence the rationalized form of the expression will be 
Learn more on rationalization here: brainly.com/question/14261303
For this case we have that by definition, an equation of the line of the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
We have two points through which the line passes, then we find the slope:


Then, the equation is of the form:

We substitute a point and find b:
Finally we have:
y = x-4
Answer:
Option B
Answer:
$300
Step-by-step explanation:
$400 is 100% of the price
25% is a quarter of 100%
A quarter of 400 is 100 so the discount was $100
400-100 =300
Answer:
x = 2 y= 1
Step-by-step explanation:
Solve the system by elimination by stacking the equations lining up the variables.
x + 3y = 5
-x - y = -3
Next, add each of the like terms.
x + 3y = 5
+ -x - y = -3
-----------------------
0x + 2y = 2
y = 1
Then substitute y = 1 into one of the equations.
x + 3(1) = 5
x + 3 = 5
x = 2
Answer:
+or-6
Step-by-step explanation:
This is a trick question. The answer would be the first choice since you're multiplying -6 by +or-6, meaning that it could still end up as a negative or a positive.