214k views
4 votes
9 questions for 30 points!

9 questions for 30 points!-example-1
User Feuby
by
7.3k points

1 Answer

4 votes

Answer:

1. The solution to question one = (2, -6)

2. The solution to question two = (-1, 7)

3. The solution to question three = (1, 12)

4. The solution to question four = (2, -12)

5. The solution to question five = (3, 12)

6. The solution to question six = (-3, 12)

7. The solution to question seven = (-2, -8)

8. The solution to question eight = (-3, 21)

9. The solution to question nine = (2, 16)

Explanation:

Steps to solve question 1:

Step 1: Substitute 5x for y in y = x - 8 and solve for y

1. (5x) = x - 8 → 4x = 8 → x = 2

Step 2: Plug 2 in for x in y = x - 8 and solve for x

2. y = (2) - 8 → y = -6

The solution to question one: (2, -6)

Steps to solve question 2:

Step 1: Substitute 3x for y in y = -x - 4 and solve for y

1. (3x) = -x - 4 → 4x = -4 → x = -1

Step 2: Plug -1 in for x in y = -x - 4 and solve for x

2. y = -(-1) - 8 → y = 7

The solution to question two: (-1, 7)

Steps to solve question 3:

Step 1: Substitute 12x for y in y = x + 11 and solve for y

1. (12x) = x + 11 → 11x = 11 → x = 1

Step 2: Plug 1 in for x in y = x + 11 and solve for x

2. y = (1) + 11 → y = 12

The solution to question three: (1, 12)

Steps to solve question 4:

Step 1: Substitute -6x for y in y = x - 14 and solve for y

1. (-6x) = x - 14 → -7x = -14 → x = 2

Step 2: Plug 2 in for x in y = x - 14 and solve for x

2. y = (2) - 14 → y = -12

The solution to question four: (2, -12)

Steps to solve question 5:

Step 1: Substitute 2x for y in y = -x + 9 and solve for y

1. (2x) = -x + 9 → 3x = 9 → x = 3

Step 2: Plug 3 in for x in y = -x + 9 and solve for x

2. y = (3) + 9 → y = 12

The solution to question five: (3, 12)

Steps to solve question 6:

Step 1: Substitute -4x for y in y = x + 15 and solve for y

1. (-4x) = x + 15 → -5x = 15 → x = -3

Step 2: Plug -3 in for x in y = x + 15 and solve for x

2. y = (-3) + 15 → y = 12

The solution to question six: (-3, 12)

Steps to solve question 7:

Step 1: Substitute 4x for y in y = -x - 10 and solve for y

1. (4x) = -x - 10 → 5x = -10 → x = -2

Step 2: Plug -2 in for x in y = -x - 10 and solve for x

2. y = -(-2) - 10 → y = -8

The solution to question seven: (-2, -8)

Steps to solve question 8:

Step 1: Substitute -7x for y in y = x + 24 and solve for y

1. (-7x) = x + 24 → -8x = 24 → x = -3

Step 2: Plug -3 in for x in y = x + 24 and solve for x

2. y = (-3) + 24 → y = 21

The solution to question eight: (-3, 21)

Steps to solve question 9:

Step 1: Substitute 8x for y in y = -x + 18 and solve for y

1. (8x) = -x + 18 → 9x = 18 → x = 2

Step 2: Plug 2 in for x in y = -x + 18 and solve for x

2. y = -(2) + 18 → y = 16

The solution to question nine: (2, 16)

Hope this helps you out :)

User Timgluz
by
9.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories