The graph of y 2 x contains the following points: (0,0) (1,1) (-1,1) (2,4) (-2,4) (3,9) (-3,9)
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The zeros of a polynomial represent the points at which the graph crosses (or touches) the x-axis.
Easy. Same thing as the graph of f(x) = x^2 + 1 which have NO intercept.
y=x-2
The x goes first. If you have trouble remembering which way round it is, remember "the monkey runs along the ground (x) then up the tree (y)". So (2,5) means "two along and five up" or "x:2, y:5".
y = 0.5x + 1 x = -2, y = 0 x = -1, y = 0.5 x = 0, y = 1 x = 1, y = 1.5 x = 2, y = 2 Plot the points in the coordinate system, and draw the line, which is the line of the given equation.