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krok68 [10]
3 years ago
14

Write the equation of the line that passes through the points (-1,-4) and (9,-5).

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
4 0

Answer:

The equation in point-slope form is: y+4=\frac{-1}{10}(x+1)

Step-by-step explanation:

Write the equation of the line that passes through the points (-1,-4) and (9,-5).

The point slope form is:  y-y_1=m(x-x_1)

Where m is slope and x₁ and y₁ are the points given

Finding Slope

Slope can be found of given points using formula:  Slope=\frac{y_2-y_1}{x_2-x_1}

We have  x_1=-1, y_1=-4, x_2=9, y_2=-5

Putting values and finding slope

Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-5-(-4)}{9-(-1)}\\ Slope=\frac{-5+4}{9+1}\\ Slope=\frac{-1}{10}

So, slope m = -1/10

Using point (-1,-4) and slope m = -1/10 the equation is:

y-y_1=m(x-x_1)\\y-(-4)=\frac{-1}{10}(x-(-1))\\y+4=\frac{-1}{10}(x+1)

So, the equation in point-slope form is: y+4=\frac{-1}{10}(x+1)

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