Slope from Line and Two Points

The graph of a line passes through the points (2, 3) and (5, 7).

What is the slope of the line?

Mathematical Equivalence

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slope from two points

Use the formula to find the slope between the two points. (4, 9) and (7, 5)

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CCSS.8.EE.B.5

The graph of a line passes through the points (-3, -2) and (-5, -7).

What is the slope of the line?

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slope from two points

What is the slope in simplest form?

• 8

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CCSS.8.EE.B.5

Mathematical Equivalence

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slope from two points

• zero

• undefined

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CCSS.8.EE.B.5

The graph of a line passes through the points (13, 21) and (0, 2).

What is the slope of the line?

Mathematical Equivalence

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slope from two points

The graph of a line passes through the points (-1, -1) and (-7, -1).

What is the slope of the line?

Mathematical Equivalence

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slope from two points

A line passes through the points (-3,8) and (2,8). Write the slope of the line.

• m=0

• m=-5

• m=undefined

• m=5

Answer explanation

The y-values are the same, so the change in y is 0, which makes the slope 0! 0 divided by anything is 0!

If the x-values were the same, then the slope would be undefined.

Tags

CCSS.8.EE.B.5

Find the slope:
(-1,-9) and (5, -6)

• -15/4

• 1/2

• -3/6

• 11/3

Tags

CCSS.8.EE.B.5