( 1, ∞)  is the domain of (b o a)(x)
 
<h3>
What is Function?</h3>
A function is defined as a relation between a set of inputs having one output each. 
According to the question,

 To find the domain of the composite function,

Therefore,

Hence , [ 1, ∞ ] is is the domain of (b o a)(x).
learn more about function here:brainly.com/question/12431044
#SPJ1
 
        
             
        
        
        
Answer:
y = 5x + 3
Step-by-step explanation:
First we need to find the slope.
The equation to find the slope is m = y2 - y1/x2 - x1  -----> (x1 and x2 just mean the x coordinate for the 2 points, so basically in this case, x1 would be 1 and x2 would be 3. Same for y1 and y2, just the y coordination of each point. y1 = 8 and y2 = 18)
m = 18 - 8/ 3 - 1
m = 10/2
m = 5
The slope would be 2 or 2/1. If you have a fraction that does not divide evenly, such as 3/5, DO NOT simplify unless specified. 
Now that we have the slope, we can put this into point-slope form. The formula for this form is:
y - y1 = m(x - x1)
For this you would have to choose one of your points.
I'm going to choose the first one.
y - 8 = 5(x - 1) ----> Always remember in this formula the "m" is the slope, and we previously found out that it was 2, so plug 2 into m
From here just do basic multiplication and addition/subtraction.
y - 8 = 5x - 5
   +8          +8
y = 5x + 3
To test to see if these go through your points, plug the 2 points and equation into a website called desmos. (Very good site, and if your teacher has not recommend it, I highly advise using it. )
 
        
             
        
        
        
Answer:
81
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The numbers of toys per hour is 60c/m toys
Step-by-step explanation:
* Lets explain how to solve the problem
- an algebraic expression is an expression formed from integer 
  constants, variables, and the algebraic operations like addition, 
   subtraction, multiplication, division 
- Ex: 5x² − 7xy + a is an algebraic expression
* Lets solve the problem
- Kevin makes c toys in m minutes
∴ His rate is c/m toy per minute
- To find the number of toys in one hour multiply his rate by the time
   in minutes
∵ In one hour there are 60 minutes
∵ His rate = c/m (toy/minute)
∵ The time is 60 minutes
∴ The number of toys = c/m × 60 = 60c/m toys
∴ The numbers of toys per hour is 60c/m toys
 
        
             
        
        
        
Answer:
x = -105
Step-by-step explanation:

Hope this helps.