Question

A line has a slope of -1 and contains the points (1, 2) and (2, y). The value of y is
01
03
0
-1

Answer 1

Answer:

$1 = y$

Step-by-step explanation:

Define the rate of change [slope]:

-y₁ + y₂\-x₁ + x₂ = m

$-\frac{2 + y}{-1 + 2} = \frac{?}{1} = -1 \\ \\ -\frac{2 + 1}{-1 + 2} = \frac{-1}{1} = -1$

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