Since we have to solve this system graphically, we'll have to draw both lines.
To draw a line, simply build a little tables with two x,y values: for the first line we have
So, you can draw the points (0,3) and (1,2), connect them, and you'll have the graph of the line 
For the second line we have
So, you can draw the points (0,5) and (1,6), connect them, and you'll have the graph of the line 
Finally, we have to check where the two lines cross. If your drawing is accurate enough, you'll see that the point you're looking for is (-1, 4)
Answer:
B
Step-by-step explanation:
Pythagorean theorem (applicable on right triangles only) says:
- Where
and 
are the two legs of the triangle and 
is the length of the hypotenuse [THE LONGEST SIDE].
<u>We can square each leg on the triangle and take the sum, if that is equal to the square of the longest side, we have a right triangle. Let's check for all of these.</u>
A.
They're not right triangle.
B.
This is a right triangle.
C.
They're not right triangle.
D.
They're not right triangle.
Only B is the right triangle.
Answer:
1.) D
2.) 12in
3.)6
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
We are given two functions:
And we want to find:
Thus:
We can factor the denominator of the first term:
In order to add the two terms, we must have a common denominator. To achieve this, we can multiply to second term by (x - 4). Therefore:
Multiply:
Combine:
Simplify:
We can expand the denominator:
Therefore, our answer is A.
That is Proof by Contradiction.
The famous one is the proof of the square root of 2 is irrational . First done by Euclid
