Question

What is the slope of a trend line that passes through the points (5, 80) and (7, 65)?

Answer 1

Answer: a

Step-by-step explanation:

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Answer 2

The slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.

Step-by-step explanation:

If the line is passing through two points (x1, y1) and (X2, y2). The slope (m) can be calculated using following formula.

$m = \frac{y2-y1}{x2-x1}$

In this case,

x1  = 5

x2 = 7

y1  = 80

y2 =  65

By putting the values in formula, we get

$m = \frac{(65-80)}{7-5}$

$m = \frac{(-15)}{2}$

or

m = -7.5

Therefore, the slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.

Learn more:

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Keywords: slope

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