Ch. 2 A Vocab

Question 1

Graphs

Answer 1

Pictures of points in a coordinate system in which points denote relationships between numbers

Question 2

Coordinate system

Answer 2

A two-dimensional space in which one point represents two numbers

Question 3

Interpolation assumption

Answer 3

The assumption that the relationship between variables is the same between points as it is at the points

Question 4

Linear curve

Answer 4

A curve that is drawn as a straight line

Question 5

Inverse relationship

Answer 5

A relationship between two variables in which when one goes up, the other goes down

Question 6

Nonlinear curve

Answer 6

A curve that is drawn as a curved line

Question 7

Direct relationship

Answer 7

A relationship in which when one variable goes up, the other goes up too

Question 8

Slope

Answer 8

Change in value on the vertical axis divided by the change in value along the horizontal axis

Question 9

Line graph

Answer 9

A graph where the data are connected by a continuous line

Question 10

Bar graph

Answer 10

Graph where the area under each point is filled in to look like a bar

Question 11

Pie chart

Answer 11

A circle divided into “pie pieces” where the undivided pie represents the total amount and the pie pieces reflect the percentage of the whole pie that the various components make up.