Finding Slope with Coordinate Points

The video tutorial explains how to find the slope of a line using two coordinate points. It introduces the slope formula, Y2 - Y1 over X2 - X1, and explains the concepts of rise and run. The tutorial provides step-by-step instructions for calculating slope, including substituting given points into the formula, completing the computation, and checking the slope by graphing. Several examples are provided, including calculations with positive and negative slopes. The importance of simplifying fractions is emphasized to ensure accuracy in slope calculations. The video concludes with a recap of the key points and encourages viewers to review the material if needed.

What is the formula for calculating the slope of a line given two points?

• Y2 - Y1 / X2 - X1

• X2 - X1 / Y2 - Y1

• (X2 + X1) / (Y2 + Y1)

• (Y2 + Y1) / (X2 + X1)

What does the numerator in the slope formula represent?

• Change in Y

• Change in X

• Run

• Rise

If the coordinates are (1,2) and (2,5), what is the slope of the line?

• 3

• 1/3

• 2

• 3/2

How do you verify the slope on a graph?

• Plotting the points and drawing a line

• Calculating the area under the curve

• Measuring the angle of the line

• Using a protractor

What is the slope of a line between the points (1,2) and (4,3)?

• 1

• 3/1

• 1/3

• 3

How do you handle negative numbers in slope calculations?

• Treat negative as positive

• Subtract them as usual

• Add them

• Ignore the signs

Why is it important to simplify the slope fraction?

• To find the exact middle points

• To make calculation easier

• To ensure accuracy in graph plotting

• All of the above

What does the fraction bar on a calculator do?

• Multiplies fractions

• Adds fractions

• Subtracts fractions

• Simplifies fractions

What is the slope of the line between points (-1,2) and (3,4)?

• 1/2

• 2/1

• 2

• 1

What should you remember about the slope formula for effective learning?

• Y2 - Y1 over X2 - X1

• It only applies to straight lines

• It calculates the area under the curve

• The order of points matters