Answer:
Solve for x
Step-by-step explanation:


The formula for an arithmetic sequence is as follows:

In this formula,
represents the
th term of the sequence and
represents the common difference between each term.
Plug in the known values.

Subtract.

Multiply.

Add.

Answer:
<h2>Graph C.</h2>
Step-by-step explanation:
The given situation is about an increasing function, that is, a positive correlation between the independent variable and the dependent variable. This positiva correlation is shown by the graph C only, because graph A is showing a negative correlation and graphs B and D aren't showing a clear correaltion.
Therefore, the right answer must be C, that is, graph C is showing a positive correaltion. In other words, it shows "as x increases, y increases".