2 Select the correct answer from each drop-down menu.
Consider the given quadratic equations.
Equation A Equation B Equation C Equation D
y=3x2 - 6x + 21 y= 3x2 - 6x + 18 y = 3(x - 1)2 + 18 y = 3(x - 1)2 + 21
Complete the following statement.
Equations A and Care equivalent, and of those, equation
function It defines.
is in the form most useful for identifying the extreme v
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