Exploring Adding and Subtracting Rational Expressions

This video tutorial explains the concept of slope-intercept form, a method for writing linear equations. It begins with defining linear functions and introduces the slope-intercept form equation, y = mx + b, where m is the slope and b is the y-intercept. The tutorial provides examples of writing equations using given slopes and intercepts, and demonstrates how to identify these from graphs. It concludes with practice problems to reinforce the concepts learned.

What does the 'M' in the slope-intercept form represent?

• Coefficient of Y

• Y-intercept

• X-intercept

• Slope

In the equation y = 3x - 5, what is the y-intercept?

• -3

• 0

• 3

• -5

How do you write an equation with a slope of -1/2 and y-intercept of -3?

• y = -1/2x + 3

• y = 1/2x - 3

• y = 1/2x + 3

• y = -1/2x - 3

What is the simplified form of the equation y = -1x + -7?

• y = -x - 7

• y = x + 7

• y = -x + 7

• y = x - 7

If a line crosses the y-axis at 0, what is the y-intercept?

• 0

• -1

• 1

• Undefined

What is the slope if you move up 4 units and right 4 units?

• -1

• 0

• 4

• 1

For a slope of -2/3 and y-intercept of -2, what is the correct equation?

• y = 2/3x + 2

• y = -2/3x + 2

• y = -2/3x - 2

• y = 2/3x - 2

What does a slope of 3/4 indicate about the line?

• Rises 3 units for every 4 units to the right

• Falls 4 units for every 3 units to the right

• Rises 4 units for every 3 units to the right

• Falls 3 units for every 4 units to the right

In the equation y = 5x - 4, what is the slope?

• 0

• 4

• -4

• 5

What is the y-intercept of the equation y = -1/2x - 6?

• -1/2

• -6

• 6

• 0