W(-7,-4) indicates the reflection across y=x. (x,y) transformed to (y,x). w(-7,-4) =w(7,4).
w'(7,-4) indicates the reflection across y-axis. (x,y) is transformed to (-x,y). w(-7,-4) = w(7,-5).
Explanation:
The rules for reflecting over the X axis is to negotiate the value of the y coordinate of each point and x is same.
After reflection the coordinates of the figure can be determined. If you reflect over the x-axis, then keep the x-coordinate and take the opposite of y- coordinate. If you reflect over y-axis, then take the opposite of x- coordinate and keep y- coordinate.
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<span>Generally,
it is during the colder seasons that glaciers tend to advance downward, causing
further erosional landforms. Items below
are facts regarding Glaciers according from the <span>National Oceanic and Atmospheric Administration
(NOAA) who studies the skies and the oceans: </span></span>
<span>1. </span><span>Approximately
10 percent of Earth's land is covered with glaciers.
</span>
<span>2. </span>Glaciers covered 32 percent of land during the last
Ice Age.
<span>3. </span>Glaciers store about 75 percent of the world's fresh
water.
<span>4. </span>Antarctic ice is more than 2.6 miles approximately
4,200 meters thick in some areas.
<span>5. </span>If all land ice melted, sea level would rise
approximately 230 feet (70 meters) worldwide.
