Question

The equation of a line is y = 2x + 3. What is the equation of the line that is parallel to the first line and passes through (2, –1)?
A.
4x – 2y = –6
B.
y = 2x – 5
C.
y = 3x + 4
D.
2x + y = –1

Answer 1

What do you know about the slopes of parallel lines?

Answer 2

anything els? cuz i dont know much

Answer 3

@mathstudent55 I was just about to post the answer to help him. Oh well, adios!

Answer 4

Parallel lines have the same slope.

Answer 5

yea post it

Answer 6

The given line has equation:

y = 2x + 3

That means the slope is 2.

The parallel line also has slope 2.

Answer 7

so d? cuz that has 2x

Answer 8

i know its not c

Answer 9

A and B are parallel to the given equation as @mathstudent55 mentioned in the previous post

Answer 10

The parallel line has equation

y = 2x + b

Now we need to find b.

We use the given point for x and y and solve for b.

-1 = 2(2) + b
-1 = 4 + b
-5 = b

Since b = -5, the equation of the parallel line is

y = 2x - 5

Answer 11

Which choice is y = 2x - 5?

Answer 12

oh so we know its not c so that is out

Answer 13

b its b

Answer 14

i know it

Answer 15

Correct.

Answer 16

your the man now i can finally sleep i was up all day doing hw

Answer 17

u just gave a child the ability to sleep

Answer 18

god bless

Answer 19

thanks & you're welcome