Understanding Linear Equations in Slope-Intercept Form

The video tutorial explains how to find the equation of a line in slope-intercept form using two given points: (-5, -6) and (0, -3). It identifies the y-intercept from the point (0, -3) and calculates the slope using the change in y over the change in x. The slope is found to be 3/5, leading to the equation y = 3/5x - 3. The tutorial concludes by verifying the equation through graphing.

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

• y = mx + b

• y = ax^2 + bx + c

• y = a/x + b

• ax + by = c

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

In the equation y = mx + b, what does 'b' represent?

• The y-intercept

• The midpoint of the line

• The slope of the line

• The x-intercept

Given the point (0, -3), what is the value of the y-intercept?

• 3

• 5

• 0

• -3

Tags

CCSS.8.EE.B.5

How do you calculate the slope 'm' between two points?

• Change in x divided by change in y

• Change in y divided by change in x

• Sum of x and y

• Product of x and y

Tags

CCSS.8.EE.B.5

What is the slope of the line passing through the points (-5, -6) and (0, -3)?

• 3/5

• 5/3

• -5/3

• -3/5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the equation of the line with a slope of 3/5 and y-intercept of -3?

• y = -3/5x + 3

• y = 3/5x - 3

• y = 3/5x + 3

• y = -3/5x - 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

When forming the equation y = mx + b, why is it more common to write '-3' instead of '+(-3)'?

• It changes the value of the equation

• It is a convention to simplify expressions

• It is easier to calculate

• It is mathematically incorrect to write '+(-3)'

What color is used to graph the line in the video?

• Yellow

• Green

• Blue

• Red

Which points are used to verify the linear equation on the graph?

• (-5, 6) and (0, 3)

• (5, -6) and (0, -3)

• (5, 6) and (0, 3)

• (-5, -6) and (0, -3)

Tags

CCSS.8.EE.B.5

What is the purpose of graphing the line and points in the video?

• To find the slope

• To determine the x-intercept

• To verify the linear equation

• To calculate the y-intercept

Tags

CCSS.8.EE.B.5