Exploring the Slope Formula

What is the minimum number of points needed to define a line?

• One

• Two

• Three

• Four

What is the formula for calculating the slope between two points?

• (y2 - y1) / (x2 - x1)

• (y1 - y2) / (x1 - x2)

• (x2 - x1) / (y2 - y1)

• (x1 - x2) / (y1 - y2)

Why is it important to use parentheses when substituting values into the slope formula?

• To make the formula look neat

• To avoid mistakes with negative signs

• To follow the formula exactly

• To make it easier to read

How are coordinates typically written?

• Y, X

• Y; X

• X, Y

• X; Y

What is the first step in using the slope formula with two points?

• Using a calculator

• Calculating the difference in X values

• Calculating the difference in Y values

• Labeling the coordinates

What should you do if you encounter integers while calculating the slope?

• Use a calculator

• Estimate the values

• Recalculate manually

• Ignore them

What is the simplified form of the slope if the difference in Y values is 22 and the difference in X values is 34?

• 22/34

• 34/22

• 11/17

• 17/11

What is the slope of a line if the difference in Y values is 0?

• Infinite

• Undefined

• 0

• 1

If the coordinates are (15, -20) and (-18, -20), what is the slope of the line?

• -1

• 1

• Undefined

• 0

What is the slope of the line with coordinates (11, 12) and (12, -18)?

• 0

• 1

• -30

• 30