Finding Slope and Y-Intercept

Front

What is the point where a line crosses the y-axis?

Back

y-intercept

Front

Which of the following are ways to find the slope of a line? (a) find the change in y over change in x (b) find the rise over run (c) find the difference in the y coordinates over difference in the x coordinates (d) all of the above

Back

all of the above

Front

Find the slope given the points (1, 2) and (4, 5).

Back

Slope = (5 - 2) / (4 - 1) = 3/3 = 1

Front

What is the slope of the line with the equation y = 2/3x - 6?

Back

2/3

Front

What is the slope of the line with the equation y = 4x + 12?

Back

4

Front

Define slope in mathematical terms.

Back

Slope is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

Front

What does a positive slope indicate about a line?

Back

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

Front

What does a negative slope indicate about a line?

Back

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

Front

If a line has a slope of 0, what does this mean?

Back

A slope of 0 means the line is horizontal.

Front

If a line is vertical, what is its slope?

Back

The slope of a vertical line is undefined.