CH 3

Question 1

absolute value

Answer 1

remove any negative sign in front of a number and to think of all numbers as positive

Question 2

additive inverse

Answer 2

a number a is the number that when added to a yields zero

Question 3

coordinate grid

Answer 3

determined by a horizontal number line called the x-axis and a vertical number line called the y-axis

Question 4

coordinate plane

Answer 4

determined by a horizontal number line called the x-axis and a vertical number line called the y-axis

Question 5

graph

Answer 5

comprising a set V of vertices, nodes or points together with a set E of edges

Question 6

integer

Answer 6

is a number that can be written without a fractional component

Question 7

negative integer

Answer 7

is an integer to the left of zero on the number line

Question 8

opposite

Answer 8

Two integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line

Question 9

ordered pair

Answer 9

In mathematics, an ordered pair (a, b) is a pair of mathematical objects

Question 10

origin

Answer 10

the point on the coordinate plane where the x-axis and y-axis intersect (0,0)

Question 11

positive integer

Answer 11

are the numbers 1, 2, 3, … (OEIS A000027), sometimes called the counting numbers or natural numbers, denoted

Question 12

quadrant

Answer 12

each of four parts of a plane, sphere, space, or body divided by two lines or planes at right angles

Question 13

x-axis

Answer 13

the axis, usually horizontal, along which the abscissa is measured and from which the ordinate is measured

Question 14

x-coordinate

Answer 14

the axis, usually horizontal, along which the abscissa is measured and from which the ordinate is measured

Question 15

y-axis

Answer 15

the secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates

Question 16

y-coordinate

Answer 16

The Y Coordinate is always written second in an ordered pair of coordinates