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My name is Ann [436]
3 years ago
6

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

Mathematics
1 answer:
shusha [124]3 years ago
5 0

Answer:

A) -3x+y=-7

Step-by-step explanation:

Slope of the line:

\frac{5-(-1)}{4-2} =\frac{6}{2} =3

y=mx+b

y=3x+b

Plug in x and y values of any of the points.

5=3(4)+b

5=12+b

b=-7

Equation of the line:

y=3x-7

Subtract 3x from both sides:

y-3x=-7

-3x+y=-7

A is correct.

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