3 years ago

A line passes through (1, 1) and ( – 3,5).

1 answer:

6 0

Slope = Δy ÷ Δx

y₂-y₁
---------
x₂-x₁

5-1
------- =
-3-1

4
----
-4

slope = -1

y-y₁ = m (x-x₁)

y-1 = -1 (x-1)

y-1 = -x + 1

y = -x + 1 + 1

y = -x + 2

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