Flashcard 4B Review

Front

What is the y-intercept of the line y = 2x - 1?

Back

The y-intercept is the point where the line intersects the y-axis. For the line y = 2x - 1, the y-intercept is (0, -1).

Front

How do you find the slope of a line given its equation in slope-intercept form?

Back

The slope (m) is the coefficient of x in the equation y = mx + b.

Front

What is the slope of the line represented by the equation y = 4x + 2?

Back

The slope is 4.

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates that the line is horizontal.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

How do you convert the equation -4y - 3x = -20 into slope-intercept form?

Back

Rearranging gives y = -\frac{3}{4}x + 5.

Front

What is the slope of the line represented by the equation y = -\frac{2}{3}x + 1?

Back

The slope is -\frac{2}{3}.

Front

What is the formula for slope between two points (x1, y1) and (x2, y2)?

Back

The formula for slope is m = \frac{y2 - y1}{x2 - x1}.

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls from left to right.