Proportions (tables and graphs)

Front

What is a y-coordinate in an ordered pair?

Back

In an ordered pair (x, y), the y-coordinate is the second number, which represents the vertical position on a graph.

Front

Identify the y-coordinate in the ordered pair (4, 9).

Back

9

Front

What is the origin in a coordinate plane?

Back

The origin is the point (0, 0) where the x-axis and y-axis intersect.

Front

True or False: The point (0, 0) is called the origin.

Back

True

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, also known as the unit rate.

Front

True or False: The constant of proportionality is also the unit rate.

Back

True

Front

What does it mean for a graph to represent a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin.

Front

Does the graph that does not pass through the origin represent a proportional relationship?

Back

No, because it doesn't pass through the origin.

Front

What is the x-coordinate in an ordered pair?

Back

In an ordered pair (x, y), the x-coordinate is the first number, which represents the horizontal position on a graph.

Front

Identify the x-coordinate in the ordered pair (2, 5).

Back

2