Understanding Slope and Linear Equations

The video tutorial explains how to graph a linear equation in slope-intercept form, y = mx + b. It covers identifying the slope (m) and y-intercept (b), plotting the initial point, and using the slope to find a second point. The tutorial also discusses adjusting the slope to fit the graph within the coordinate plane and verifies the slope by checking the line's direction. The process is demonstrated with the equation y = 3/4x + 4, showing how to plot and verify the line on a graph.

What is the general form of a linear equation in slope-intercept form?

• y = a/x + b

• ax + by = c

• y = ax^2 + bx + c

• y = mx + b

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

In the equation y = 34x + 4, what does the number 4 represent?

• The rate of change

• The y-intercept

• The x-intercept

• The slope of the line

Tags

CCSS.8.EE.B.5

How do you determine the slope from the equation y = 34x + 4?

• By identifying the constant term

• By looking at the coefficient of x

• By finding the y-intercept

• By calculating the x-intercept

Tags

CCSS.8.EE.B.5

What does the term 'rise over run' refer to in graphing?

• The y-intercept

• The x-intercept

• The slope of the line

• The equation of the line

If the slope is 3/4, how do you find a second point from the y-intercept?

• Go down 4 units and left 3 units

• Go down 3 units and left 4 units

• Go up 4 units and right 3 units

• Go up 3 units and right 4 units

Why might you need to change the form of the slope when graphing?

• To change the y-intercept

• To find the x-intercept

• To fit the line within the coordinate plane

• To make the line horizontal

Tags

CCSS.8.EE.B.5

What is the equivalent negative form of the slope 3/4?

• 3/-4

• -3/-4

• -3/4

• -4/3

Tags

CCSS.8.EE.B.5

How does changing the slope to -3/-4 affect the direction of plotting?

• You go down and right

• You go up and left

• You go down and left

• You go up and right

Tags

CCSS.8.EE.B.5

What does it mean if a line is going uphill from left to right?

• The slope is zero

• The slope is negative

• The slope is positive

• The slope is undefined

What should you do if the initial slope form doesn't allow you to plot a second point on the graph?

• Change the y-intercept

• Adjust the slope form

• Use a different equation

• Find a new x-intercept