Which graph represents a proportional relationship?
1 answer:
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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:
Answer:
The solution is <u>-3</u>.
The graph is attached.
Step-by-step explanation:
To solve, first subtract 2 from both sides to get . Now divide 5 from both sides to get
.
The graph representing this is attached.
Hope it helps and is correct!
