Exploring the Slope Formula

This video tutorial covers the slope formula, explaining how to find the slope using ordered pairs and tables. It begins with an introduction to the formula, y2 - y1 over x2 - x1, and demonstrates its application through examples. The video also explains how to calculate slope without a graph by using ordered pairs and tables, emphasizing the importance of labeling and substituting values correctly. The tutorial concludes with a summary of the key points discussed.

What does the slope formula calculate?

• The difference between x values

• The sum of x and y values

• The product of x and y values

• The ratio of change in y to change in x

In the slope formula, what does 'rise over run' represent?

• Change in x over change in y

• Difference between highest and lowest points

• Change in y over change in x

• Sum of x and y changes

How do you label ordered pairs for the slope formula?

• (x1, y1) and (x2, y2)

• (y1, x1) and (y2, x2)

• (x2, y2) and (x1, y1)

• (y2, x2) and (y1, x1)

What is the slope of a line through points (7, 2) and (9, 8)?

• 3

• 2

• 1

• 0

If the slope's numerator is positive and the denominator is negative, the slope is:

• Zero

• Undefined

• Negative

• Positive

When simplifying the fraction in the slope formula, what do you get?

• An integer

• A decimal number

• A complex number

• A percentage

What is the first step in finding the slope between two points?

• Simplifying the fraction

• Labeling the points with subscripts

• Drawing a graph

• Calculating the difference in x values

What does a slope of zero indicate about a line?

• It is rising

• It is falling

• It is vertical

• It is horizontal

How do you find the slope from a table of values?

• Add all x and y values

• Multiply corresponding x and y values

• Find the difference between any two y values and divide by the difference between their x values

• Divide the largest y value by the smallest x value

What does an undefined slope indicate?

• The line is diagonal

• The line is horizontal

• The line is vertical

• There is no line