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likoan [24]
3 years ago
10

A line passes through (2, −1) and (4, 5).

Mathematics
2 answers:
liberstina [14]3 years ago
7 0
The answer to the first question is B
The second question is B
PSYCHO15rus [73]3 years ago
6 0

Answer:

<h2>1) Option B is the correct answer.</h2><h2>2) Option B is the correct answer.</h2>

Step-by-step explanation:

1) We have equation of line passing through (x₁,y₁) and (x₂,y₂) given by

                       y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

   (x₁,y₁) = (2, −1) and (x₂,y₂) = (4, 5)

Substituting

       y-(-1)=\frac{5-(-1)}{4-2}(x-2)\\\\y+1=3(x-2)\\\\y+1=3x-6\\\\-3x+y=-7

Option B is the correct answer.

2) Point slope form of line is given by

                 y-y₁ = m(x-x₁)

        (x₁,y₁) = (1, 9) and m = 5

     Substituting    

               y-9 = 5(x-1)        

     Option B is the correct answer.  

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