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3 years ago

11

Which expression can be simplified to find the slope of the trend line in the scatterplot?

2 answers:

bazaltina [42]3 years ago

8 0

Answer: 35-21/8-4

Step-by-step explanation:

Nutka1998 [239]3 years ago

3 0

Answer: $\frac{35-21}{8-4}$

Step-by-step explanation:

The slope of a line equals to the difference between points' y-coordinates divided by the difference between their x-coordinates.

That is, if $(x_1,y_1)$ and $(x_2,y_2)$ are the point of a line,

Then the slope of the line is,

$m=\frac{y_2-y_1}{x_2-x_1}$

By the given diagram,

$x_1=4$ , $y_1=21$ , $x_2=8$ and $y_2=35$

Thus, the slope of the given line

= $\frac{35-21}{8-4}$

⇒ Fourth option is correct.

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