3.1 Reading Graph & Rectangular Coordinate

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to locate a point on a coordinate plane, written in the form (x, y).

Front

What does the x-coordinate represent in an ordered pair?

Back

The x-coordinate represents the horizontal position of a point on the coordinate plane.

Front

What does the y-coordinate represent in an ordered pair?

Back

The y-coordinate represents the vertical position of a point on the coordinate plane.

Front

In which quadrant does the point (3, 2) lie?

Back

Quadrant I.

Front

In which quadrant does the point (–3, 2) lie?

Back

Quadrant II.

Front

In which quadrant does the point (–3, –2) lie?

Back

Quadrant III.

Front

In which quadrant does the point (3, –2) lie?

Back

Quadrant IV.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the y-intercept of a linear equation?

Back

To find the y-intercept, set x = 0 in the equation and solve for y.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the change in y divided by the change in x (rise/run).