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What is the quadratic function f(x)=x^2+2x-2 in vertex form? a. f(x)=(x+1)^2-1 b. f(x)=(x+1)^2-3 c. f(x)=(x-1)^2-3 d. f(x)=(x-1)^2-1
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Jun 3, 2019
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What is the quadratic function f(x)=x^2+2x-2 in vertex form?
a. f(x)=(x+1)^2-1
b. f(x)=(x+1)^2-3
c. f(x)=(x-1)^2-3
d. f(x)=(x-1)^2-1
Mathematics
high-school
Koschei
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Given: f(x) = x² + 2x - 2
Add 2 to both sides: f(x) + 2 = x² + 2x
Complete the square: f(x) + 2 + (1) = x² + 2x + (1) → f(x) + 3 = (x + 1)²
Subtract 3 from both sides: f(x) = (x + 1)² - 3
Answer: B
Djlumley
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Jun 10, 2019
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Djlumley
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