Adecrease in the price of a particular product will result in question 7 options: a decrease in the demand for that product. a shift in the production possibilities frontier. an increase in the quantity demanded of that product. an increase in the quantity supplied of that product.

In most cases, a demand curve is assumed to have a negative slope, so ...

... a decrease in the price will result in an increase in the quantity demanded of that product.

There are exceptions: in certain markets, a low price is associated with cheap goods of unsuitable quality (or fashion), so quantity demanded goes down, rather than up.

but there’s no any figure there!

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.