Question

How many solutions does a system of two linear equations have if the slope of each equation is the same, but the y-intercepts are different?

infinitely many

none

one

none of the above

Answer 1

If the slopes are the same, then the lines are parallel, which means they never intersect and there are no solutions.

Answer 2

do you think you can help me with my math I'm so bad at it and i need some help

Answer 3

and so would i put none of the above

Answer 4

depends on what you ask. I'll help where I can.

Answer 5

Just none

Answer 6

okay thank you and hold on

Answer 7

Select the system of linear equations that has the solution (7, 0).

Answer 8

A. x-y=7
B. x+y=9 & 7x+3y=10
C.-5x-y=-35 & x-y=7
D.x+y=7 &3x-4y=21 & 3x+4y=-20

this is the choices

Answer 9

The solution only has 2 numbers, so there have to be 2 equations. Can't be A or D

Answer 10

Plug in 7 for x and 0 for y to test the other systems.

Answer 11

i got b for the answer

Answer 12

The first equation in B is x + y = 9
7 + 0 is not 9, so that can't be the answer

Answer 13

oh i see now

Answer 14

and my last questions is how many solutions does x-3y=-8 & x+3y=8

Answer 15

infinitely many

none

one

none of the above

Answer 16

The slope of the first equation is 1/3. The slope of the second equation is -1/3. Different slopes → 1 solution

Answer 17

thank you so much are you good at graphs

Answer 18

kind of

Answer 19

I'm going to send you one hold on

Answer 20

(0, -5)

(1, 3)

(0, 0)

(-1, -3)

Answer 21

The yellow box is kind of covering it, but the solution is the point where the blue lines cross.

Answer 22

is it going to be -1,-3

Answer 23

yeah that looks right

Answer 24

(3, -6)

(1, 0)

(0, 4.5)

(2, 7)

Answer 25

same thing, pick where the lines cross

Answer 26

is it 2,7

Answer 27

no.

Answer 28

oh is it 3,-6

Answer 29

yep

Answer 30

yaaay thank you so much with the help

Answer 31

you're welcome