Finding the Slope: Graphs and Ordered Pairs

Which type of slope does a line have if it goes upwards from left to right?

• Zero

• Negative

• Positive

• Undefined

What is the slope of a horizontal line?

• Positive

• Negative

• Zero

• Undefined

When finding the slope from a graph, what is the first step?

• Count the number of lines to the right

• Find two points on the line

• Reduce the fraction

• Count the number of lines up or down

In the slope fraction, what does the denominator represent?

• The steepness

• The vertical change

• The horizontal change

• The total distance

In Example 1, what is the slope of the line through the points (-1, -3) and (2, 3)?

• 1/2

• 2

• 3/2

• 3

In Example 1, why is the slope positive?

• Because the line goes upwards from left to right

• Because the line is horizontal

• Because the line goes downwards from left to right

• Because the line is vertical

In Example 2, what is the slope of the line through the points (-3, 2) and (2, -5)?

• -5/7

• 7/5

• -7/5

• 5/7

In Example 2, why is the slope negative?

• Because the line is vertical

• Because the line goes upwards from left to right

• Because the line is horizontal

• Because the line goes downwards from left to right

What is the formula for finding the slope using two ordered pairs?

• (x2 - x1) / (y2 - y1)

• (y2 - y1) / (x2 - x1)

• (x1 - x2) / (y1 - y2)

• (y1 - y2) / (x1 - x2)

What is the slope of a line if the numerator of the slope fraction is zero?

• Positive

• Negative

• Undefined

• Zero