49.2k views
1 vote
Determine the equation of the line that passes through the (8,-27) and is parallel to the line y = - 3x - 1

User Jlam
by
4.2k points

1 Answer

1 vote
Answer:

The equation parallel to the given equation, and passing through the given point is

y = -3x - 3

Step-by-step explanation:

Given the line:

y = -3x - 1 ................................................(1)

The slope of this equation is -3

A line parallel to this line has the same slope as this, but a different y-intercept.

Let the parallel line be

y = -3x + b ..............................................(2)

To find the unknown b, we use the given point (8, -27), i.e x = 8, y = -27 into equation (2) and solve for b

-27 = -3(8) + b

-27 = -24 + b

b = -27 + 24

= -3

Substitute the value of b into (2), we have

y = -3x - 3