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1: A GRAPHICAL REPRESENTATION of the X and Y intercepts

Y Intercept for x 5 -4x 3 + 2x + 2


The function intersects the y axis in (0, 2).
The y coordinate of this point is
the y intercept.

y int = 2.

Graph
 X Intercepts for x 5 -4x 3 + 2x + 2


The function intersects the x axis in three
points: (-2, 0), (1.195, 0) and (1.706, 0).

The x coordinates of these points are
the x intercepts.

X int = {-2, 1.195, 1.706}


CONCEPT CHECK:
What is the sum of the x intercepts of the function: