Bell Ringer 1

Front

What is the formula to calculate the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change of y with respect to x; it indicates how steep the line is.

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).

Front

Given the equation y = mx + b, what do m and b represent?

Back

m is the slope of the line, and b is the y-intercept.

Front

Calculate the slope of the line passing through the points (1, 2) and (4, 5).

Back

Slope = (5 - 2) / (4 - 1) = 1.

Front

Identify the slope and y-intercept of the line represented by the equation y = 3x - 4.

Back

Slope: 3, y-intercept: -4.

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 a line has a slope of -1, what does this indicate about its direction?

Back

The line decreases from left to right.

Front

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

Back

Slope is undefined (vertical line).