Finding Slope from Two Points

The video tutorial reviews how to find the slope from two points. It begins with a reminder of slope concepts, including positive, negative, undefined, and zero slopes. The tutorial then explains the slope formula, y2 - y1 over x2 - x1, and demonstrates its application through three examples. The first example involves calculating the slope between two points, resulting in a positive slope. The second example shows a horizontal line with a slope of zero, and the third example illustrates a vertical line with an undefined slope.

What type of slope is represented by a line that goes upwards from left to right?

• Zero slope

• Undefined slope

• Positive slope

• Negative slope

Which type of slope is associated with a horizontal line?

• Zero slope

• Undefined slope

• Negative slope

• Positive slope

What is the formula for calculating slope between two points?

• (y1 - y2) / (x1 - x2)

• (y2 - y1) / (x2 - x1)

• (x1 - x2) / (y1 - y2)

• (x2 - x1) / (y2 - y1)

In the formula for slope, what does the numerator represent?

• Change in Y

• Sum of X values

• Sum of Y values

• Change in X

Given the points (-4, 7) and (-6, -4), what is the slope?

• 11/2

• -11/2

• 2/11

• -2/11

When calculating the slope, what happens when you divide a negative by a negative?

• The result is zero

• The result is negative

• The result is undefined

• The result is positive

For the points (19, 3) and (20, 3), what is the slope?

• -1

• Undefined

• 0

• 1

What does a slope of zero indicate about the line?

• It is horizontal

• It is vertical

• It is undefined

• It is diagonal

Given the points (17, -13) and (17, 8), what is the slope?

• 21

• 0

• 1

• Undefined

What type of line is represented by an undefined slope?

• Curved

• Diagonal

• Vertical

• Horizontal