Slope and Distance MathAntics Video Companion

What equation represents any linear function on the 2D coordinate plane?

• y = mx + b

• y = mx^2 + b

• y = m/x + b

• y = mx - b

What symbol is used to represent 'change in'?

• Beta (β)

• Alpha (α)

• Delta (Δ)

• Gamma (γ)

How do you calculate the slope of a line?

• (delta Y) - (delta X)

• (delta Y) over (delta X)

• (delta Y) + (delta X)

• (delta Y) * (delta X)

What is the equation for calculating the distance between two points on a line?

• Distance = (delta X) + (delta Y)

• Distance = the square root of [(delta X) squared + (delta Y) squared]

• Distance = (delta X) * (delta Y)

• Distance = (delta X) - (delta Y)

What theorem is used in the equation for calculating the distance between two points?

• Fermat's Last Theorem

• The Theorem of Calculus

• The Pythagorean Theorem

• Euler's Theorem

What does the slope equation 'slope = rise over run' describe?

• The difference between X and Y changes

• The sum of X and Y changes

• The change in Y over the change in X

• The change in X over the change in Y

How do you calculate delta X?

• X1 + X2

• X2 - X1

• X2 / X1

• X1 * X2

How do you calculate delta Y?

• Y1 - Y2

• Y2 - Y1

• Y1 + Y2

• Y1 / Y2

Can the 'rise' in the 'rise over run' description of slope be negative?

• Yes, if the line has a negative slope

• No, rise is always positive

• No, rise is always equal to run

• Yes, but only in the southern hemisphere

What does the subscript in 'X1' and 'Y1' represent?

• Multiplication by 1

• Division by 1

• An exponent

• Distinguishing different variables