Answer: 
Step-by-step explanation:
The slope of a line equals to the difference between points' y-coordinates divided by the difference between their x-coordinates.
That is, if 
and 
are the point of a line,
Then the slope of the line is,
By the given diagram,
, 
, 
and 
Thus, the slope of the given line
=
⇒ Fourth option is correct.
Yes it is a function!, all the first numbers are none repeating, for example it says -5,4,6 since they are not the same this is a function
Answer:
6.
Step-by-step explanation:
To solve this, you can set up an equation as such:
x²-18= 3x
Now, rearrange this to make it an equation in standard form:
x²-3x-18=0.
Simply turn this equation into factored form:
(x-6)(x+3)= 0.
The only positive solution here is x=6.
For this item, I assume that Svetlana's hair is 4 cm long and she wanted it to be at least 7 cm long.
We let x be the number of months it will take for her hair to be 7 cm long. The sum of the product of x and the rate and the initial length should be at least 7. Mathematically,
1.51x + 4 ≤ 7
Answer:
X = 6
Step-by-step explanation:
Since
