Okay what is the personal matter?
<span> Demand, Supply, and </span>Market Equilibrium<span>. ... a change in the quantity demanded of a product that </span>results<span> from the change in real ... in the product's </span>price; (2) the effect of a change in theprice<span> of a </span>resource<span> on the ... a </span>good<span> or </span>service<span> whose consumption declines as income rises, </span>prices<span>held constant.</span>
You need to upload pictures of the sources so we can see them :)
Answer:
The answer is the second one (The slope of the tangent line is 5).
Explanation: