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Answer:
f(x) = 7/9*(x-1)² + 3
Step-by-step explanation:
vertex (1 , 3) : (h , k)
quadratic function: y = a(x-h)² + k
pass (4 , 10): 10 = a(4-1)² + 3
10 = 9a + 3
a = 7/9
Function: f(x) = 7/9*(x-1)² + 3