Question

1. y = x + 6
y = 2x

(6, 12)
(–12, –6)
(–6, –12)
(2, 4)

2. 3x + 2y = 7
–3x + 11 = y

(6, –3)
(6, –7)
(5, –4)


What is the solution of the system? Use substitution.

3. 2x – y = –7
4x – y = –4

(–1.5, 4)
(1.5, 10)
(4, –1.5)
(–1.5, –2)

How many solutions does the system have?
4. –4y + 4 = x
2x + 8y = 8

one solution
two solutions
infinitely many solutions
no solution

5. 6x + 2 = y
3y – 18x = 12

one solution
two solutions
infinitely many solutions
no solution

Answer 1

1. y=12
x=6

2. x=5
y=4

3. y=10
x=3/2(1.5)

4. infinitely many solutions

Answer 2

#2 is actually y=-4

Answer 3

Is 1 negative of positive?

Answer 4

I am confused on how you got 3, would you mind explaining it to me?

Answer 5

for #1 their both positive

Answer 6

On which question?

Answer 7

3

Answer 8

Do you know number 5?

Answer 9

Number 5 has no solution

Answer 10

Thanks :)

Answer 11

Have you figured out number 3?

Answer 12

Yea I'm writing out the equation

Answer 13

Okay thanks :)