4th. dated 2.11.25 Interleaved Practice 7

Front

What is the slope of a line?

Back

The slope of a line measures its steepness and direction. It is calculated as the change in y divided by the change in x (rise over run).

Front

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

Back

Use the formula: m = (y2 - y1) / (x2 - x1).

Front

What does it mean if the slope is undefined?

Back

An undefined slope occurs when a line is vertical, meaning there is no change in x (x2 - x1 = 0).

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio. The graph of a proportional relationship is a straight line that passes through the origin.

Front

What is the formula for finding the missing angle in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees. If you know two angles, subtract their sum from 180 to find the missing angle.

Front

What is the y-intercept of a line?

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

What does it mean for a graph to be linear?

Back

A linear graph represents a linear equation, showing a constant rate of change and forming a straight line.

Front

How do you determine if a system of equations has one solution, no solution, or infinitely many solutions?

Back

If the lines intersect at one point, there is one solution. If the lines are parallel, there is no solution. If the lines overlap, there are infinitely many solutions.

Front

What is the significance of the point (1, 3) in the context of a system of equations?

Back

The point (1, 3) is the solution to the system of equations, meaning it satisfies both equations simultaneously.

Front

What is the difference between a positive slope and a negative slope?

Back

A positive slope indicates that as x increases, y also increases. A negative slope indicates that as x increases, y decreases.