Answer:
Key features: the functions can not be parallels, this means that their respective slopes can not be equal or multiple to the other
Step-by-step explanation:
Take for instance 2 linear functions, and
If they intersect in some point in the space, say that is
Then (x1,y1)=(x3,y3), (x2.y2)= (x3,y3)
So, we can compare the two functions and get the following result;
It tells us that if M=m, we get an error, meaning that the functions are in fact parallels and there is no way that they meet in some point.
hope this helps!
Common factors for the various terms include -1, 7, y. Factoring out the product of those gives ...
... -7y(3xz +4x +5z) . . . . . . matches selection B)
Answer:
y = 1/3x - 8
Step-by-step explanation:
First you solve:
3x + y = - 5
Then subtract x since we're looking for y on both sides of the ( = ):
3x + y = - 5
-3x -3x
Making it:
y = -3x - 5
and then you make the slope ( m ) positive , like so :
1/3
then set up the equation :
y - y1 = m ( x - x1 )
and fill in the points they gave you :
( 3, -7 )
^x1 ^y1
Like this :
y - y1 = m ( x - x1 )
y + 7 = 1/3 ( x - 3 )
y + 7 = 1/3x - 1
-7 -7
y = 1/3x - 8
( If you have the calculator for it , you could always put the equation in and check if it goes through the point )
Add all the numbers together than divde by the answer and how many numbers there are anf the answer is 1.6