Question

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 1

@Jack1

Answer 2

http://www.algebra.com/algebra/homework/coordinate/Types-of-systems-inconsistent-dependent-independent.lesson
second section dude (green font)

Answer 3

Thanks but I figured it out, is it "the same line"?

Answer 4

same line/overlapping lines, yep

Answer 5

Thanks

Answer 6

Can you help with one last question?

Answer 7

all good hey, u already had it

Answer 8

sure, sshoot

Answer 9

Choose the correct graph of the given system of equations.

y + 2x = -1
3y - x = 4

Answer 10

The last multiple choice answer is: "None of the Above"

Answer 11

when does eqn 1 = eqn 2?

Answer 12

What's eqn?

Answer 13

equation

Answer 14

Oh.

Answer 15

Well they equal each other when they're the same.

Answer 16

yep, but at what point (x, y)?

Answer 17

I'm not sure

Answer 18

EQN 1: y + 2x = -1
EQN 2: 3y - x = 4

simultaneous equations
sub y = -2x -1 into EQN 2

will give you the x value where they meet
use that value in either eqn to find the y value where they meet
use that (x, y) point to identify which graph is correct

Answer 19

3y - x = 4
3(-2x -1) - x = 4
-6x -3 - x = 4
-7x = 7
x = -1

Answer 20

Is that the first equation or the 2nd?

Answer 21

y = -2x -1

The Y-intercept is 1

And the slope is -2

Answer 22

Oh, so the answer is Graph A?

Answer 23

slope is only of that line (eqn 2)
but yep, intercept point is (-1, 1)

Answer 24

So the answer is A?

Answer 25

something like this, so yeah, A

Answer 26

Thanks a lot.

Answer 27

all good ;)