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Point A(4,3), point B(-1,3) find the equation

User Gregmatys
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1 Answer

5 votes

Answer:

y = 3

Explanation:

The slope-intercept form of an equation of a line:


y=mx+b

m - slope

b - y-intercept

The formula of a slope:


m=(y_2-y_1)/(x_2-x_1)

We have two points A(4, 3) and B(-1, 3).

Substitute:


m=(3-3)/(-1-4)=(0)/(-5)=0

The slope m = 0, therefore it's a horizontal line.

The equation of a horizontal line:


y=a where a is any real number

The line passes through points A and B, where ordinates are equal 3.

Therefore the equation is


y=3

User Auticcat
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