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OpenStudy (shaleiah):
OpenStudy (shaleiah):
@Directrix
Directrix (directrix):
If f(x) = 2x - 1
f(-x) = 2* (-x) - 1
Directrix (directrix):
f(-x) = 2* (-x) - 1
f(-x) = -2x - 1
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The task is to graph y = -2x - 1
OpenStudy (shaleiah):
hang on..
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Directrix (directrix):
I graphed over at Desmos.com
OpenStudy (shaleiah):
The instructor wants me to print it and graph the grid on paper.
Directrix (directrix):
On the grid paper, put dots on the grid to represent the points of
(0,-1) and (2, -5)
Two points determine a line so draw the line passing through those two points.
Directrix (directrix):
See attached.
Directrix (directrix):
If you put your graph on this thread, I'll check it for you.
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OpenStudy (shaleiah):
alright :)
Directrix (directrix):
Be careful as you count units to locate the two points.
Directrix (directrix):
Once you get the points in the right place, draw the line joining them.
OpenStudy (shaleiah):
OpenStudy (shaleiah):
@Directrix
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Directrix (directrix):
That looks good.
OpenStudy (shaleiah):
thanks for your help!
Directrix (directrix):
One suggestion. I would write the coordinates of the two points on the graph or in the margin of the grid so that the teacher could see which two points I graphed to get the graph of the line.