The graph below depicts the price of tomatoes as a function of quantity, with each line representing the prices at different shops.
Where is it cheaper to buy 7 kg of tomatoes?
The graph below depicts the price of tomatoes as a function of quantity, with each line representing the prices at different shops.
Where is it cheaper to buy 7 kg of tomatoes?
Let's look at the red line:
The X-axis shows us the quantity, we'll locate 7 kg and from it draw a vertical line to the line - mark a point.
From this point we'll draw a horizontal line to the Y-axis which shows the price and we'll see that 7 kg costs 8 NIS.
Let's look at the blue line:
The X-axis shows us the quantity, we'll locate 7 kg and from it draw a vertical line to the line - mark a point.
From this point we'll draw a horizontal line to the Y-axis which shows the price and we'll see that 7 kg costs 10 NIS.
Therefore it's better to buy at the red store, it's cheaper.
In the red shop