Answer: It's a tie between f(x) and h(x). Both have the same max of y = 3
The highest point shown on the graph of f(x) is at (x,y) = (pi,3). The y value here is y = 3.
For h(x), the max occurs when cosine is at its largest: when cos(x) = 1. 
So,
h(x) = 2*cos(x)+1
turns into
h(x) = 2*1+1
h(x) = 2+1
h(x) = 3
showing that h(x) maxes out at y = 3 as well
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Note: g(x) has all of its y values smaller than 0, so there's no way it can have a max y value larger than y = 3. See the attached image to see what this graph would look like if you plotted the 7 points. A parabola seems to form. Note how point D = (-3, -2) is the highest point for g(x). So the max for g(x) is y = -2
 
        
        
        
I think that she could buy 3 tubes of paint because that's $25.50 and that gives you 28.50 for the canvas. 
 
        
             
        
        
        
I believe the correct answer is he paid the right amount
        
                    
             
        
        
        
Answer:
Answer is E hope this helps :)
Step-by-step explanation:
 
        
             
        
        
        
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