marialopesdesouza12
marialopesdesouza12 marialopesdesouza12
  • 12-08-2020
  • Mathematics
contestada

Write the equation of a line that passes through the point (-1,5) and has a slope of -7. Your answer should be given in the form y = mx + b.

Respuesta :

Stephen46
Stephen46 Stephen46
  • 20-08-2020

Answer:

The answer is

[tex]y = - 7x - 2[/tex]

Step-by-step explanation:

Equation of a line is y = mx + b

where

m is the slope

b is the y intercept

To find the equation of a line given a point and slope we use the formula

y - y1 = m(x - x1)

where

m is the slope

( x1 , y1) is the point

From the question

Slope = - 7

The point is ( - 1 , 5)

So the equation of the line is

[tex]y - 5 = - 7(x + 1) \\ y - 5 = - 7x - 7 \\ y = - 7x - 7 + 5[/tex]

We have the final answer as

[tex]y = - 7x - 2[/tex]

Hope this helps you

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