Answer:
a
Step-by-step explanation:
a
Answer is <span>A.x=4
</span><span>5x−5=15
5(4) - 5 = 15
20 - 5 = 15
15 = 15</span>
Stocks are a good example.
Answer:
Step-by-step explanation:
So explicit formula essentially is general term formula. Or a formula that when you put in a value for n, you can get that number term in the arithmetic sequence. The way this formula is written is:
Where is the term (result of this formula) that is based on whatever value you put in for n
is the first term of the sequence
n is the term number that you want
and d is the common difference
So to fill in a general formula or explicit formula all we need is and d, because this gives us a general expression for any term we choose, or for any value of n
So to find d, all we have to do is take the difference between a term in front and a term behind that term. Ill show you what I mean:
So if we consider the sequence above we can do
-3 - 3 or -9 - (-3) or 15 - (-9) or -21 -(-15) all of these will give us the value for d (we just take a term before and subtract it by the term after)
So all of these come out to a value of -6
So d = -6
is just our first term so: = 3
Therefore, our explicit formula is
Answer:
point slope form is y=mx+b
the equation of the line that goes through (6,4) and (7,2) is y=-2x+16