Asked by Benny
                Which quadratic function has its vertex at (2,3) and passes through (1,0)? 
a. y = 2(x-2)^2+3
b. y = -3(x-2)^2+3
c. y = -3(x+2)^2+3
d. y = 2(x-2)^2-3
Could you explain why you got your answer, too?
            
        a. y = 2(x-2)^2+3
b. y = -3(x-2)^2+3
c. y = -3(x+2)^2+3
d. y = 2(x-2)^2-3
Could you explain why you got your answer, too?
Answers
                    Answered by
            Reiny
            
    if y = a(x-p)^2 + q then the vertex is (p,q)
both a) and b) match that pattern
but which one does (1,0) satisfy?
substitute to find out.
    
both a) and b) match that pattern
but which one does (1,0) satisfy?
substitute to find out.
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