2.8-2.9 Slope and y-intercept

Front

What is the slope of a horizontal line?

Back

0

Front

What is the y-intercept of a line?

Back

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

Front

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

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

The line falls from left to right.

Front

What is the slope of a vertical line?

Back

Undefined

Front

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

Back

The slope of the line.

Front

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

Back

The y-intercept of the line.

Front

Find the slope of the line that passes through the points (2, 3) and (4, 7).

Back

Slope = (7 - 3) / (4 - 2) = 2.

Front

What is the y-intercept of the line represented by the equation y = -2x + 5?

Back

(0, 5)