Question

Which system of equations below has no solution?

A. y = 4x + 5 and y = 4x – 5
B. y = 4x + 5 and 2y = 8x + 10
C. y = 4x + 5 and y = 1/3 + 5
D. y = 4x + 5 and y = 8x + 10

Answer 1

so what you could do is set each pair of equations equal to each-other and if there is no solution you'll get something like 2 =3 when you plug one value into the other equation. or something like that.

try solving the first one by setting both equations equal to each-other @ChaCha1234 start with the first one

Answer 2

I think it's the first one?

Answer 3

Ya it's the first one!

Answer 4

Am I right?

Answer 5

show me why it is the first one

Answer 6

https://www.symbolab.com/solver/step-by-step/y%20%3D%204x%20%2B%205%20%2C%20y%20%3D%204x%20-%205/?origin=enterkey

Answer 7

exactly no solution.

Answer 8

Can you help with one more?

Answer 9

5 = -5

Answer 10

yeah tag me.

Answer 11

@Photon336
A system of equations is given below.

y=1/2x-3 and y=-1/2x-3

Which of the following statements best describes the two lines?

They have the same slope but different y-intercepts, so they have no solution.
They have the same slope but different y-intercepts, so they have one solution.
They have different slopes but the same y-intercept, so they have no solution.
They have different slopes but the same y-intercept, so they have one solution.

Answer 12

y = mx+b where b = the y intercept and m= the slope

Answer 13

you could try setting the equal to each-other and trying solve them.

0.5x-3 = -0.5x-3

x = -3+3

x = 0

0, -3

they have one solution,

Answer 14

So.. B @Photon336 ?

Answer 15

they have a different slope, same y intercept, but one solution.