Asked by Carter
                Find the inverses of each of the functions below algebraically.
p(r)=2r^2+2r−1
	
3y+5x=18
	
            
            
        p(r)=2r^2+2r−1
3y+5x=18
Answers
                    Answered by
            SHABRAELNN
            
    p(r) or p = 2r2 + 2r - 1
p = 2(r+0.5)2 - 1.5
r = 2(p+0.5)2 - 1.5
(r+1.5)/2 = (p+0.5)2
+-sqrt[(r+1.5)/2] = p + 0.5
p-1(r) = -0.5 +- sqrt[(r+1.5)/2]
After testing, only right-hand side works. Hence p-1(r) = -0.5 + sqrt[(r+1.5)/2]
    
p = 2(r+0.5)2 - 1.5
r = 2(p+0.5)2 - 1.5
(r+1.5)/2 = (p+0.5)2
+-sqrt[(r+1.5)/2] = p + 0.5
p-1(r) = -0.5 +- sqrt[(r+1.5)/2]
After testing, only right-hand side works. Hence p-1(r) = -0.5 + sqrt[(r+1.5)/2]
                    Answered by
            Carter
            
    can you find the other one aswell please
    
                    Answered by
            M
            
    Virtual high school right?
    
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