Find the equation of a line that is parallel to the line x equals negative 1x=−1 and contains the point left parenthesis negative 2 comma 1 right parenthesis .

Question

asked Feb 15, 2018 117k views

1 Answer

Ray Henry · Answer 1 · 2018-02-22T11:29:22+0000

The equation of the line is given as
y-x=-1

A straight line equation is given in the form
y=mx+c

where

is the gradient and

is the y-interest.

We need to rearrange
y-x=-1

to make

the subject.

y= x-1

⇒ from here we can read the gradient and the y-intercept. The gradient,
m=1

and

.

A line that is parallel to
y=x-1

will have the same gradient,
m=1

but different y-intercept. One example of equation of a line that is parallel to
y=x-1

is