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Finding the slope when given a table

Finding the slope when given a table-example-1
User Arsal Imam
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6 votes

Answer:

m = 2

Explanation:

We can find the slope using the slope formula, which is

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

  • m is the slope,
  • (x1, y1) is one point in the table,
  • and (x2, y2) is another point in the table.

We can allow (-9, -16) to be our (x1, y1) point and (-1, 0) to be our (x2, y2) point:

m = (0 - (-16) / (-1 - (-9))

m = (0 + 16) / (-1 + 9)

m = (16) / (8)

m = 2

Thus, the slope of the table is 2.

Alternate method: Alternatively, we can remember that the slope is simply change in y / change in x. Look at the point (-1, 0) and (0, 2). As the y points increase by 2, the x-points increase by 1 as. Thus, the change in y over the change in x is 2/1 and the slope is 2. The slope formula is more reliable as a table may not always have consecutive numbers.

User Cesarggf
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