Exploring the Slope Formula

What is the slope of a line?

• The distance between two points

• The steepness of a line

• The length of a line

• The midpoint of a line

Which formula is used to calculate the slope between two points?

• (x2 - x1) / (y2 - y1)

• (y1 - y2) / (x1 - x2)

• (y2 - y1) / (x2 - x1)

• (x1 - x2) / (y1 - y2)

In the slope formula, what does the numerator represent?

• Change in x-values

• Sum of x-values

• Sum of y-values

• Change in y-values

If you have points (-2, -8) and (-1, -5), what is the slope?

• 1

• 4

• 2

• 3

What should you do if you get a division by zero error while calculating slope?

• Ignore the error

• Write 'undefined' as the slope

• Use a different formula

• Recalculate the values

What is the slope of the line passing through points (3, -1) and (-2, -4)?

• 5/3

• -5/3

• 3/5

• -3/5

What is the slope of a vertical line?

• One

• Negative

• Undefined

• Zero

Given the slope 2 and points (1, 3) and (5, k), what is the value of k?

• 13

• 9

• 7

• 11

If the slope is -1/5 and the points are (-4, k) and (6, -7), what is k?

• 5

• -5

• 7

• -7

What does the 'x1' and 'y1' represent in the slope formula?

• Second set of ordered pairs

• Sum of x and y values

• First set of ordered pairs

• Difference of x and y values