Understanding Slope Calculation

This video tutorial explains how to find the slope of a line given two points. It introduces the slope formula and provides step-by-step instructions for calculating the slope. The video includes four examples, demonstrating different scenarios such as positive slope, negative slope, and undefined slope. Each example is explained in detail, highlighting the importance of correctly substituting values and simplifying the results.

What is the letter used to denote the slope in the slope formula?

• s

• p

• m

• n

What is the first step in finding the slope from two given points?

• Simplify the fraction

• Subtract the x-coordinates

• Label the coordinates

• Write down the slope formula

In Example 1, what is the slope calculated from the points (1, 5) and (-3, 3)?

• 1/2

• 2/3

• -1/2

• -2/3

Why is it important to use parentheses during substitution in the slope formula?

• To ensure correct order of operations

• To avoid sign errors

• To simplify the calculation

• To make the equation look neat

In Example 2, what is the slope calculated from the points (1, 8) and (3, -6)?

• -7

• 7

• -14

• 14

What happens when you try to divide by zero in the slope calculation?

• The slope becomes zero

• The slope is negative

• The slope is undefined

• The slope becomes infinite

What type of line has an undefined slope?

• Horizontal line

• Vertical line

• Diagonal line

• Curved line

In Example 3, what is the result of 7 minus negative 1?

• 6

• 8

• 7

• 9

In Example 4, what is the slope calculated from the points (0, -5) and (-2, 5)?

• 5

• -5

• -10

• 10

What is the significance of writing the slope formula multiple times?

• To avoid mistakes

• To make calculations faster

• To memorize it easily

• To impress others