Mastering Slope Concepts in 8th Grade Algebra

What is the general form of the slope-intercept equation?

• y = m/x + b

• y = mx - b

• y = ax^2 + bx + c

• y = mx + b

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

• The x-intercept

• The constant term

• The slope

• The y-intercept

How do you find the slope between two points?

• Sum of y-coordinates

• Run over rise

• Rise over run

• Sum of x-coordinates

If a line crosses the y-axis at 4, what is the y-intercept?

• 0

• 1

• 4

• -4

What is the equation of a line with a slope of -4 and a y-intercept of 4?

• y = 4x + 4

• y = -4x - 4

• y = -4x + 4

• y = 4x - 4

What is the slope of a line that rises 1 unit and runs 3 units?

• 3/1

• 1

• 3

• 1/3

What should you do first when graphing a line from an equation?

• Draw the line

• Start with the y-intercept

• Find the x-intercept

• Find the slope

If the y-intercept is 3 and the slope is 1/3, where do you place the second point?

• Down 3, left 1 from the y-intercept

• Up 1, right 3 from the y-intercept

• Down 1, left 3 from the y-intercept

• Up 3, right 1 from the y-intercept

How does a negative slope affect the direction of a line?

• The line goes up

• The line goes down

• The line stays horizontal

• The line stays vertical

If the slope is -3/2, how do you plot the second point from the y-intercept?

• Up 2, right 3

• Down 2, right 3

• Down 3, right 2

• Up 3, right 2