Point-slope form of an equation of the line through the points (-1, 4) and (-2, 2). 

or

Step-by-step explanation:

The point-slope of an equation of a line:

m - slope

The formula of a slope:

We have the points (-1, 4) and (-2, 2).

Substitute:

for the point (-1, 4):

for the point (-2, 2):

The point-slope form equation of a  line is: y − y1 = m(x − x1)

First find the slope which is the change in y over the change in x:

Slope = 2-4 / -2 - -1 = 2-4 / -2+1 = -2/-1 = 2

In the point-slope equation:

M = slope = 3

y1 = 4

x1 = -1

Replace the letters with their values to get:

y -4 = 2(x- -1)

Simplify:

Point-slope form: y-4 = 2(x+1)

450

step-by-step explanation:

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