Graphing and Finding equations of lines

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the slope of a horizontal line?

Back

0

Front

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

Back

y-intercept

Front

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

Back

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

Front

What is the slope of the line passing through the points (2, 3) and (5, 7)?

Back

4/3

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 the line represented by the equation y = 3x + 2?

Back

3

Front

What is the y-intercept of the line represented by the equation y = -4x + 1?

Back

1

Front

If a line has a slope of 0, what does it look like?

Back

It is a horizontal line.