write a linear equation in point slope form for the line that goes through (-1, 1) and (1, -3) Question write a linear equation in point slope form for the line that goes through (-1, 1) and (1, -3) in progress 0 Math Melody 1 week 2021-09-15T00:17:34+00:00 2021-09-15T00:17:34+00:00 2 Answers 0

## Answers ( )

Answer:see explanation

Step-by-step explanation:The equation of a line in point- slope form is

y – b = m(x – a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = (y₂ – y₁ ) / (x₂ – x₁ )

with (x₁, y₁ ) = (- 1, 1) and (x₂, y₂ ) = (1, – 3)

m = = = – 2

Using either of the 2 points as a point on the line, then

Using (- 1, 1)

y – 1 = – 2(x – (- 1)), that is

y – 1 = – 2(x + 1) ← in point- slope form

Answer:y – 1 = -2(x + 1).Step-by-step explanation:The slope = (-3-1)/(1 – -1)

= -4 / 2

=

-2.In point slope form:

y – y1 = m(x – x1)

Using m = -2 and the point (-1, 1):

y – 1 = -2(x + 1).