The coefficient of \(x^2\) is positive, so the graph will be a positive U-shaped curve. Writing \(y = x^2 - 6x + 4\) in completed square form gives \(y = (x - 3)^2 - 5\). Squaring positive or ...
Horizontal lines have equations of the form \(y = c\). Draw the graph of \(x = 3\). Mark some points on a grid which have an \(x\)-coordinate of 3, such as (3, 0), (3, 1), (3, -2). The points lie ...
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