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Mathematics 13 Online
OpenStudy (anonymous):

What are the coordinates of point E? (5, –4) (–4, –5) (–5, –4) (–5, 4)

OpenStudy (anonymous):

OpenStudy (anonymous):

@phi

OpenStudy (john_es):

(-5,-4)

OpenStudy (anonymous):

are you sure it's -4 and not +4

OpenStudy (phi):

to do this find point E. (It is the point with an E near it) count how many squares it is to the left of the origin (where the lines cross) when you go left, it is a minus number. count down how many squares point E is below the line. below the line is a minus number

OpenStudy (phi):

the number to the left or right is called x, and always goes first the number up or down, called y, always goes second list the (x,y) pair for point E

OpenStudy (anonymous):

so it's (-5, 4)

OpenStudy (phi):

is E below the x-axis ?

OpenStudy (anonymous):

Yes

OpenStudy (phi):

or look at the label on the y-axis to the right of point E... does it say -5 or +5 ?

OpenStudy (phi):

Down (below the x-axis) is negative. Left of the y-axis is negative.

OpenStudy (anonymous):

So you're saying that it's -5-4

OpenStudy (phi):

with a comma in between

OpenStudy (anonymous):

yeah so (-5.-4)

OpenStudy (anonymous):

I have more questions

OpenStudy (anonymous):

If the coordinates of a point have opposite signs, which quadrants could the point be in? Quadrants I and II Quadrants I and III Quadrants II and IV Quadrants II and III

OpenStudy (john_es):

Quadrant II: because has Y positive axis and X negative axis. Quadrant IV: because has X positive axis and Y negative axis. So Quadrants II and IV.

OpenStudy (anonymous):

Okay I have more

OpenStudy (anonymous):

4. Which ordered pair would be plotted by starting from the origin and moving 1.25 units right and then 0.5 units down? (–0.5, 1.25) (1.25, –0.5) (–1.25, 0.5) (0.5, –1.25)

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