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

On a graph, a line goes through points (4, 21) and (8, 35).
21-35/8-4
8-4/21-35
35-21/8-4
8-4/35-21

Respuesta :

The correct expression is   [tex]\frac{35-21 }{8-4} }[/tex] .

Step-by-step explanation:

Given,

Two pints are (4,21) and (8,35)

To find the slope of the line passing through the points.

Formula

The slope of the line passing through ([tex]x_{1} ,y_{1}[/tex]) and  ([tex]x_{2} ,y_{2}[/tex]) is m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Now,

Putting, [tex]x_{1}=4, y_{1}=21, x_{2}=8, y_{2}=35[/tex] we get,

m =  [tex]\frac{35-21 }{8-4} }[/tex] = [tex]\frac{14}{4} = \frac{7}{2}[/tex]

Hence,

The correct expression is   [tex]\frac{35-21 }{8-4} }[/tex]

Answer:

A. 35-21/8-4

Step-by-step explanation:

I took the test.