<h3>Explain why it is helpful to know the basic function shapes and discuss some ways to remember them. </h3>
- Knowing the basic function shapes and discuss some ways to remember them is helpful because this is useful tools in the creation of mathematical models because we constantly make theories about the relationships between variables in nature and society. Functions in school mathematics are typically defined by an algebraic expression and have numerical inputs and outputs.
Answer:
Could you state the question in the correct order?? Like is N supposed to be there?
You have -4,-3,-2, that is a 3 out of a total of 21 points or numbers on the number line. 3/21 is reduces to 1/7.
3 goes into 21 , 7 times. That is why it reduces to 1/7.
Answer: 
Step-by-step explanation:
The equation of ab line that passes through two points (a,b) and (c,d) is given by :-

From the given picture , the line is passing through points (0,3) and (3,2).
Then, the equation of the line will be :-



Hence, the required equation of the line that represents the graphed function :
Can you tell us what the expression is in the question?