Slope Basics

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form of a linear equation is given by the formula y = mx + b, where m is the slope and b is the y-intercept.

Front

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

Back

The slope (m) can be calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line is decreasing, meaning as x increases, y decreases.

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line is increasing, meaning as x increases, y also increases.

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 -3, what does this mean in terms of rise over run?

Back

A slope of -3 means that for every 1 unit you move to the right (run), you move down 3 units (rise).

Front

How can you find the y-intercept of a line given its slope and a point on the line?

Back

You can find the y-intercept (b) by rearranging the slope-intercept form y = mx + b to b = y - mx, using the slope and the coordinates of the point.

Front

What is the slope of the line represented by the equation y = 4x + 3?

Back

The slope of the line is 4.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x is 0.