The Essentials of Algebra for Secondary Schools
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In our eReader you can find the full English version of the book. Read The Essentials of Algebra for Secondary Schools Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Essentials of Algebra for Secondary Schools
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Ordinates, or y-distances, are always LINEAR EQUATIONS IN TWO VARIABLES.
149 measured parallel to the y-line. They are positive when measured above the a;-line and negative when measured below it.
The coordinates of a point are its x and y distances.
The x distance is the abscissa, and the y distance the ordinate. The coordinates of a point completely deter- mine it with respect to the lines of reference.
A point is designated by its coordinates written (m, n).
This means that m is the abscissa... and n the ordinate of the point.
Y P, X' N P,(-S,-4) P,(2,3) M X P 4 (0,-3) Y' Fig. 2.
The point P l or (2, 3) is located by measuring from to M, a distance of 2, and from if to P v parallel to OY, a distance of 3. The point P 2 or (-4, 2) is found by measuring from to N, a distance of 4, and then from N to P 2 , parallel to OF, a distance of 2. The abscissa in this case is measured to the left of OF because it is nega- 150 THE ESSENTIALS OF ALGEBRA.
tive. The location of the points P 3 or (— 5 — 4) and P t or (6, — 2) is also shown on Figure 2.
What to read after The Essentials of Algebra for Secondary Schools?
You can find similar books in the "Read Also" column, or choose other free books by Robert J Robert Judson Aley to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Ordinates, or y-distances, are always LINEAR EQUATIONS IN TWO VARIABLES.
149 measured parallel to the y-line. They are positive when measured above the a;-line and negative when measured below it.
The coordinates of a point are its x and y distances.
The x distance is the abscissa, and the y distance the ordinate. The coordinates of a point completely deter- mine it with respect to the lines of reference.
A point is designated by its coordinates written (m, n).
This means that m is the abscissa... and n the ordinate of the point.
Y P, X' N P,(-S,-4) P,(2,3) M X P 4 (0,-3) Y' Fig. 2.
The point P l or (2, 3) is located by measuring from to M, a distance of 2, and from if to P v parallel to OY, a distance of 3. The point P 2 or (-4, 2) is found by measuring from to N, a distance of 4, and then from N to P 2 , parallel to OF, a distance of 2. The abscissa in this case is measured to the left of OF because it is nega- 150 THE ESSENTIALS OF ALGEBRA.
tive. The location of the points P 3 or (— 5 — 4) and P t or (6, — 2) is also shown on Figure 2.
What to read after The Essentials of Algebra for Secondary Schools?
You can find similar books in the "Read Also" column, or choose other free books by Robert J Robert Judson Aley to read onlineMoreLess
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