Question

The equation of a line is shown below:

y = - x - 7

What is the equation of a line which is parallel to this line and passes through (1, 79)?

A. y = -x + 80

B. y = x - 80

C. y = 7x - 80

D. y = -7x + 80

Answer 1

@bluewaffles

Answer 2

@Lyrae @RolyPoly @shaadykhamlichi

Answer 3

The lines are parallel if they have the same slope.

Answer 4

y = mx + b
m is the slope.

Which line in the answers have the same slope (m) as y = -x - 7 ?

Answer 5

B right ? @Lyrae

Answer 6

Does B
y = 1x - 80
have the same m as
y = (-1)x + 80 ?

Answer 7

i think so :(

Answer 8

y = 1x - 80 y = (-1)x + 80
^ ^
| |
m m
m = 1 m = -1

Answer 9

darn

Answer 10

The (minus) sign is important!

Answer 11

Any idea which one it might be now?

Answer 12

A :))))

Answer 13

Yep! :)

Answer 14

thank you a lot