Answers
Set 86
- c.The origin, whose coordinate pair is (0,0), is in fact a location. It
is where the x-axis meets the y-axis. It is not the beginning of
either axis because both axes extend infinitely in opposite
directions, which means they have no beginning and no end. - False:You must find the sum inside the parentheses before taking
the square root of the terms. - False: Unless the coordinate pairs have the same x- or y-
coordinate, the distance between them will be a diagonal line which
cannot be counted by hand. - c.Both coordinates are negative: count three spaces left of the
origin; then count two spaces down from the x-axis. •A is in
quadrant III. - d.To find a new coordinate pair, add like coordinates: 3 + (–1) = 2.
1 + (–2) = –1. This new coordinate pair is •R (2,–1); •R lies in
quadrant IV. - c.To find a new coordinate pair, add like coordinates: xwill be
(– 40) + 20 = –20; ywill be (–20) + 18 = –2. •B (–20, –2) lies in
Quadrant III. - b.To find a new coordinate pair, add like coordinates: 15 + (–15) =
- (–15) + 0 = –15. This new coordinate pair is (0,–15); any point
whose x-coordinate is zero resides on the y-axis. - a.The y-coordinate of every point on the x-axis is zero.
- b.Draw a baseball field—its exact shape is irrelevant; only the
alignment of the players matter. They form the axis of the
coordinate plane. The ball passes the pitcher and veers left of the
second baseman; it is in the second quadrant.
501 Geometry Questions