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How to find the vertex of a function
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Answer:
Step-by-step explanation:
represent price per video game.
represent demand.
The linear equation in slope intercept form can be represented as:
where is slope of line or rate of change of demand of game per dollar change in price and
is the y-intercept or initial price of game.
We can construct two points using the data given.
When price was $66 each demand was 400.
When price was $36 each demand was 1300.
Using the points we can find slope of line.
Using point slope form of linear equation to write the equation using a given point.
Using point .
⇒ [Using distribution]
Adding 400 to both sides:
⇒
⇒
The linear relationship between price and demand can be written as: