Choose all answers that apply. It is a function
It is not a function
It is a 1-1 function
It is a many to one function

It is a function.

It is a 1-1 function.

Step-by-step explanation:

By the horizontal line test.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.