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A line graph needs an equation. x-2 and x3 are expressions: neither is an equation.

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12y ago

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What does x2 that is greater than or equal to 9 look like on a graph?

It consists of two disjointed line segments: x ≤ -3 and x ≥ 3.


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If f(x) = x2 + 25, then to plot f(x) on a graph would give you a parabolic curve extending infinitely upward with a minimum value of 25, and it's vertex at the point (0, 25).


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if y = x2 + 10x + 25 then y = (x + 5)2 This tells us that the graph would be a parabola, with it's vertex at (-5, 0), and a range of 0 to infinity.


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