Understanding Slope and Y-Intercept

The video tutorial focuses on non-proportional relationships in linear equations, explaining how to write equations from graphs using the formula y = MX + B. It covers identifying the slope and y-intercept, provides examples, and demonstrates reverse engineering of equations. Techniques for handling complicated numbers are also discussed.

What is the formula used for non-proportional relationships in linear equations?

• y = MX + B

• y = MX

• y = B

• y = X + B

In the formula y = MX + B, what does the 'B' represent?

• The slope

• The x-intercept

• The origin

• The y-intercept

What is the first step in writing an equation from a graph?

• Calculate the slope

• Determine the scale

• Identify the y-intercept

• Find the x-intercept

If a line rises 4 units and runs 2 units to the left, what is the slope?

• -2

• 4

• -4

• 2

If the rise is 4 and the run is -2, what is the slope?

• 2

• 4

• -2

• -4

If the rise is 4 and the run is -2, what is the slope?

• 2

• -2

• 4

• -4

How do you adjust the slope calculation when the graph scale is not by ones?

• Only adjust the run

• Ignore the scale

• Use the scale to adjust rise and run

• Only adjust the rise

What is the equation for a line with a y-intercept of -15 and a slope of 5?

• y = 5x + 15

• y = 5x - 15

• y = -5x - 15

• y = -5x + 15

What is the slope of the line if the rise is 9 and the run is -3?

• -3

• -9

• 3

• 9

If the equation is y = -3x + 9, what is the slope?

• 9

• 3

• -9

• -3