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Algebra 1 - Slope of Line











































Find the slope of the line passing through (5, 5) and (-4, 5).

Comments for Algebra 1 - Slope of Line

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Sep 19, 2011
Slope of Line Between Points
by: Staff

The question:

Find the slope of the line passing through (5, 5) and (-4, 5).


The answer:


slope = "rise" over "run", or "rise" DIVIDED BY "run"

slope = (change in "y" values)/(change in "x" values)

slope = (y₂ - y₁)/(x₂ - x₁)


The x-y coordinates of the two points are: (5, 5) and (-4, 5).

These points are not listed in the proper order (left to right)

They should be listed (-4, 5) and (5, 5) because the slope will be calculated as the change of "y" when x increases. In this case "x" will increase from -4 to 5 (left to right).

It is worth plotting the two points so the position of each can be visualized.

Open the link shown below to view the two points and the line graph:

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http://www.solving-math-problems.com/images/graph-equation-linear-eq-1-2011-09-19.png


Points

Left and Right

(-4, 5) and (5, 5)

(x₁, y₁) and (x₂,y₂)

x₁ = -4
x₂ = 5

y₁ = 5
y₂ = 5

slope = (y₂ - y₁)/(x₂ - x₁)

slope = (5 - 5)/( 5 - (-4))

slope = (5 - 5)/( 5 + (-1)*(-4))

slope = (5 - 5)/( 5 + 4)

Slope = 0/9

Slope = 0


The final answer to your question is: Slope = 0





Thanks for writing.

Staff
www.solving-math-problems.com


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