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What coordinate point is the green triangle on?
To find the location on a coordinate plane we first look at the -axis, which runs horizontal and then the
-axis, which runs vertical. We write the point on the
-axis first, followed by the point on the
-axis.
The green triangle is over on the
-axis and up
on the
-axis.
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Starting at the coordinate point shown below, if you move up and to the right
, what is your new point?
The starting point is at . When we move up or down we are moving along the
-axis. When we move to the right or left we are moving along the
-axis.
Moving up the -axis and moving right on the
-axis means addition.
Moving down the -axis and moving left on the
axis means subtraction.
Because we are moving up , we can add
to our
coordinate point and because we are moving to the right
we can add
to our
coordinate point.
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What other shape can a parallelogram be classified as?
A parallelogram can not be classified as a square because a square has to have equal sides, but a parallelogram can have two different side lengths, as long as the opposite side lengths are equal.
A parallelogram can not be classified as a rectangle because a rectangle has to have angles, and a parallelogram does not.
A parallelogram can not be classified as a triangle because a parallelogram has to have sides and a triangle only has
sides.
A parallelogram has four sides, and all shapes with four sides are quadrilaterals.
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