Question

CHECK MY WORK!
How many solutions will this system of equations have?

y = −3.5x − 3.5
y = −3.5x + 3.5

No solution<<<< 10 years ago

Answer 1

Two solutions, x = + 1, -1

Answer 2

3.5 = -3.5x
3.5 / -3.5 = x
x = -1

Answer 3

There is no solution. They are parallel.

Answer 4

They are parallel, they have the same slope. They just have different y-intercepts.

Answer 5

which answer?

Answer 6

The first one

Answer 7

No, if they are parallel the set has infinite solutions.

Answer 8

I suggest using geogebra.

Answer 9

Solution means intersecting points.

Answer 10

There are no intersecting points in parallel lines.

Answer 11

Oh, crap. You're right.

Answer 12

this is algebra 1. So no solution?

Answer 13

I'm overthinking the entire thing.

Answer 14

Yes, there is no solution.

Answer 15

A dependent system of equations is a system with __________.

the same line
parallel lines
intersecting lines and lines that have the same equation
intersecting lines and lines that have the same slope

Answer 16

Dependent system of equations are the same line.

Answer 17

so A?

Answer 18

Independent system of equations intersect one another, as opposed to dependent. And yes, it's A.

Answer 19

Solve the system of equations.

x + 3y = −1
2x + 2y = 6

(−4, 1)
(2, −1)
(4, −1)
(5, −2)
@izuru

Answer 20

I previously answered a question similar to this, hold on.

Answer 21

okay :)

Answer 22

Like, it's the exact same problem. I couldn't find it but I'll still help you out lol
So you can use substitution in this one. Try and isolate x in the first equation.

Answer 23

x+3y=-1
-3y -3y
x=-4y

Answer 24

-3y and -1 are not like terms.. So it's just x = -3y -1. Now, plug that isolated x into the second equation.

2x + 2y = 6
2(-3y - 1) + 2y = 6

Answer 25

2(-1)+(-1y)=6

Answer 26

You have to distribute 2*(-3y - 1) before adding +2y.

Answer 27

2*-3y-2

Answer 28

@izuru

Answer 29

The equation turns into -2 -6y + 2y = 6.
You multiply 2 by -3y and -1.

Answer 30

okay :)

Answer 31

so B? @izuru

Answer 32

@IrishBoy123
b?

Answer 33

@Luigi0210

Answer 34

@freckles @Hero

Answer 35

@CandyCove

Answer 36

b

Answer 37

y = -2. Plug it in with the first equation to figure out the value of x.

Answer 38

Its D! @izuru

Answer 39

You're right