Linear Equations Test Review (2024)

Front

What is the slope of a line parallel to the line whose equation is: -2x + y = -7?

Back

The slope is 2.

Front

What is the x-intercept of the equation 5x - 10y = 30?

Back

The x-intercept is (6, 0).

Front

What does the slope of a line represent in a real-world context?

Back

The slope represents the rate of change, such as words written per minute.

Front

What are the coordinates of the y-intercept of the equation 8x + 4y = -48?

Back

The coordinates are (0, -12).

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

How do you determine if two lines are perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

What is the general form of a linear equation?

Back

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

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

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

Back

The slope m is calculated as m = (y2 - y1) / (x2 - x1).

Front

What does the x-intercept of a line represent?

Back

The x-intercept represents the point where the line crosses the x-axis.