<h3>Answers:</h3>
- (a) The function is increasing on the interval (0, infinity)
 - (b) The function is decreasing on the interval (-infinity, 0)
 
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Explanation:
You should find that the derivative is entirely negative whenever x < 0. This suggests that the function f(x) is decreasing on this interval. So that takes care of part (b). 
The interval x < 0 is the same as -infinity < x < 0 which then translates to the interval notation (-infinity, 0)
Similarly, you should find that the derivative is positive when x > 0. So the function is increasing on the interval (0, infinity)
 
        
             
        
        
        
Answer:
($0.5 x 2) + ($1.25 x 3) + ($0.75 x 3) = $7
 
        
                    
             
        
        
        
Answer:
15, 18, 21
Step-by-step explanation:
3, 6, 9, 12, 15, 18, 21...
3 x 5 = 15
3 x 6 = 18
3 x 7 = 21
Hope this helps! :)
 
        
             
        
        
        
Answer:
560000
Step-by-step explanation:
As the profit is 3000 on car wash 
And there is 5 percent interest
As the 5ser of 3000 is 559995
So the 4 years add to 559995
Equals 560000 
<em><u>HOPE</u></em><em><u> </u></em><em><u>THIS</u></em><em><u> </u></em><em><u>HELPED</u></em>
<em><u>YOUR</u></em><em><u> </u></em><em><u>WELCOME</u></em>
<em><u>LOVE</u></em><em><u> </u></em><em><u>KITTY</u></em><em><u> </u></em>
<em><u>CAT</u></em>
 
        
             
        
        
        
Answer:
yes it represents it because the linear equation