Equation of a line flashcard

Front

What is the y-intercept in the equation y = 4x + 10?

Back

The y-intercept (b) is 10.

Front

What is the formula for calculating the slope of a line?

Back

Front

What is the slope in the equation y = 2x + 3?

Back

The slope is 2.

Front

What does the term 'parallel lines' mean?

Back

Parallel lines are lines that never intersect and have the same slope.

Front

What does the term 'perpendicular lines' mean?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

In the equation y = mx + b, what does 'm' represent?

Back

'm' represents the slope of the line.

Front

In the equation y = mx + b, what does 'b' represent?

Back

'b' represents the y-intercept of the line.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

If two lines have slopes of 3 and -1/3, how are they related?

Back

They are perpendicular lines.