Question

Input ( x ) : 2 , 3 , 4 , 5
Output ( y ) : 10 , 15 , 20 , 25
a. Identify the domain and range of the relationship.
b. Write a rule for relationship.
c. Show the rule in both standard form & slope-intercept form.
d. Does the relationship represent a function?
e. Write the relationship in function form.

Answer 1

the domain is the set of x-values
the range the set of y-values

Answer 2

for the relationship check this out:
\[ \large 10=\color{red}{2}\cdot5 \]
\[ \large 15=\color{red}{3}\cdot5 \]
\[ \large 20=\color{red}{4}\cdot5 \]
\[ \large 25=\color{red}{5}\cdot5 \]