Drugs that break down a psychological barrier against doing other drugs are known as a industrial drugs b gateway drug c first use of drugs

The answer to this is B gateway drugs as they act as a gateway to use other drugs

The right answer is (B) Gateway Drugs

Gateway drugs are those chemicals or substances that, when consumed for longer time, give way to harder and more dangerous drugs. These dangerous substances, such as nicotine or alcohol are believed to open the door to drugs such as meth, heroin and cocaine, which can lead to addiction and serious harm to human health. Marijuana, cigarettes and alcohol are the examples of gateway drugs.

option number c is the right answer.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .