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What’s the slope I need help

What’s the slope I need help-example-1
User Ram Gandhi
by
3.0k points

1 Answer

18 votes
18 votes

Answer:

-8/3

Explanation:

You want the slope of the line shown in the graph.

Slope from point coordinates

Whether counting grid squares on the graph, or using the slope formula, it is convenient to choose two points on the grid where the line crosses the intersection of grid lines.

It appears, the line passes through grid points (1, 4) and (4, -4). Using the slope formula, we find the slope of the line to be ...

m = (y2 -y1)/(x2 -x1)

m = (-4 -4)/(4 -1) = -8/3

The slope of the line is -8/3.

Counting grid squares

The slope is the ratio of "rise" to "run" for the line. From the two points we see where the line crosses grid intersections, we have a "rise" of -1 from y=4 to y=-4, and a "run" of 3 from x=1 to x=4.

rise/run = -8/3 = slope of the line

User Craig Howard
by
2.9k points
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