the graph shows the relationship between the total cost and the number of gift cards that raj bought for…

the graph shows the relationship between the total cost and the number of gift cards that raj bought for raffle prizes. what would be the cost for 5 of the gift cards? $80 $90 $100 $110

the graph shows the relationship between the total cost and the number of gift cards that raj bought for raffle prizes. what would be the cost for 5 of the gift cards? $80 $90 $100 $110

Answer

Explanation:

Step1: Identify points on graph

We can see the points (1, 20), (2, 40), (3, 60), (4, 80) on the graph. The relationship is linear with a slope of 20 (since for each increase of 1 in the number of gift - cards, the cost increases by 20).

Step2: Calculate cost for 5 gift - cards

The cost $y$ and number of gift - cards $x$ follow the equation $y = 20x$. When $x = 5$, we substitute $x$ into the equation: $y=20\times5$. $y = 100$

Answer:

$100$