Graphing Lines Review

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet or intersect, no matter how far they are extended. They have the same slope.

Tags

CCSS.HSG.CO.A.1

Front

What is the slope in the equation y = mx + b?

Back

The slope (m) represents the steepness of the line and the direction it goes. A positive slope rises from left to right, while a negative slope falls.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

What does an undefined slope indicate?

Back

An undefined slope indicates a vertical line, which means the x-coordinate does not change.

Tags

CCSS.8.EE.B.5

Front

What is the equation of a line with a slope of 0?

Back

The equation of a line with a slope of 0 is y = b, where b is the y-intercept.

Front

How do you graph the equation y = 2x + 3?

Back

To graph y = 2x + 3, start at the y-intercept (0, 3) and use the slope (2) to rise 2 units up and run 1 unit to the right.

Front

What is the slope of the line represented by the equation x = 4?

Back

The slope of the line x = 4 is undefined, as it is a vertical line.

Tags

CCSS.8.EE.B.5

Front

What is the general form of a linear equation?

Back

The general form of a linear equation is Ax + By = C, where A, B, and C are constants.

Front

How do you determine if two lines are parallel from their equations?

Back

Two lines are parallel if they have the same slope. For example, y = 2x + 1 and y = 2x - 3 are parallel.

Tags

CCSS.8.EE.B.6