Question

Sylvie solved this system of equations.

y = 5x + 2,

y = 8 – x

8 – x = 5x + 2

8 = 6x + 2

6 = 6x

x = 1

8 – 1 = 5(1) + 2

7 = 7

There are infinite solutions to this system.

Sylvie solved this system of equations.

y = 5x + 2,

y = 8 – x

8 – x = 5x + 2

8 = 6x + 2

6 = 6x

x = 1

8 – 1 = 5(1) + 2

7 = 7

There are infinite solutions to this system.

When Sylvie verified the solution on a graph, the lines intersected at one point. What was her error?
She forgot to put both equations in slope-intercept form.
She made an arithmetic mistake in the last step.
She found the incorrect value of x.
She did not substitute the value of x into one of the original equations to find y.

Answer 1

// Solve equation [1] for the variable y


[1] y = 5x

// Plug this in for variable y in equation [2]

[2] -2•(5x) + 6x = 12
[2] - 4x = 12
// Solve equation [2] for the variable x


[2] 4x = - 12

[2] x = - 3
// By now we know this much :

y = 5x
x = -3
// Use the x value to solve for y

y = 5(-3) = -15
Solution :
{y,x} = {-15,-3}

Answer 2

T^T

Answer 3

nvm D

Answer 4

kkk

Answer 5

bruh

Answer 6

T^T👌🏻

Answer 7

(;

Answer 8

😂

Answer 9

lol

Answer 10

lol

Answer 11

haaha

Answer 12

ABHABHABAHBAHABA

Answer 13

/:

Answer 14

,