Answer:-5/2
Step-by-step explanation:
When there are two points given like above use this formula.
y2-y1/x2-x1
(The 1 and 2 is gonna be on the bottom right. It represents the number of y and x as there is two sets of (x,y)
Answer:

Step-by-step explanation:
Given equation is 
Factor denominators then solve by making denominators equal







take squar root of both sides


Hence final answer is
.
Given:
First term of an arithmetic sequence = 5
Second term = 3
To find:
The explicit formula for the given arithmetic sequence.
Solution:
We have,
First term: 
Second term: 
Common difference is



Now, the explicit formula for an arithmetic sequence is

where, a is first term and d is common difference.
Putting a=5 and d=-2, we get

It can also be written as


Here, n is an integer greater than or equal to 1.
Domain is the set of input values.
Therefore, the explicit equation is
or
and domain is all interest greater than or equal to 1.
The answer is x=4 or x= minus 5 i mean D.
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