F(x)=x^2+12x+7 f(x)=(x+_)^2+_ Rewrite the function by completing the square
1 answer:
Answer:
f(x) = (x + 6)² - 29
Step-by-step explanation:
Given
f(x) = x² + 12x + 7
To complete the square
add/subtract ( half the coefficient of the x- term )² to x² + 12x
x² + 2(6)x + 36 - 36 + 7
= (x + 6)² - 29, thus
f(x) = (x + 6)² - 29
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Answer:
y= -3
Step-by-step explanation:
Substitute x as 0
6(0)-3y=9
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y= -3
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