Answer:
robert is 12 years old
Step-by-step explanation:
robert's age=x
40=3x+4
that's the equation
40=3x+4
=36=3x
x=12
Answer:

Step-by-step explanation:
Given


Required
Find g(3)
Since g(x) is a linear function, then:

For: 





For: 




Substitute 



So, the function is:


Calculate g(3)



Answer:
Yes.
From Definition - A special relationship where each input has a single output.
Check if there is going to be one y for one x.
Step-by-step explanation:
- Re-write it in terms of y=…., meaning solve for y
- If it looks like you have two equations then it is a relationship -case a
- If you need to prove that one has a function for case b, you would point out that if you substitute any value you will get some value in Reals.
The factors of 12 are 1, 2, 3, 4, 6, and 12 .
The factors of 32 are 1, 2, 4, 8, 16, and 32 .