Answer:
1. Yes
2. No
3. No
4. Yes
5. No
Step-by-step explanation:
1. If x = - 2, y = - 1
x + y = - 3 x - y = - 1
-2 + (-1) = - 3 - 2 - (-1) = - 1
-3 = - 3 (True) - 2 + 1 = - 1
- 1 = - 1 (True)
Answer: Yes
2. If x = 2, y = 5
y = 3x - 1 y = - 2x + 4
5 = 3(2) - 1 5 = - 2(2) + 4
5 = 6 - 1 5 = - 4 + 4
5 = 5 (True) 5 = 0 (False)
Answer: No
3. If x = 8, y = 2
x + y = 12 y = - x - 6
8 + 2 = 12 2 = - 8 - 6
10 = 12 (False) 2 = - 14 (False)
4. If x = 3, y = - 1
x + y = 2 y = x - 4
3 + (-1) =2 - 1 = 3 - 4
2 = 2 (True) - 1 = - 1 (True)
5. If x = 3, y = 2
2x - y = 4 x - 2y = 3
2(3) - 2 = 4 3 - 2(2) = 3
6 - 2 = 4 3 - 4 = 3
4 = 4 (True) - 1 = 3 (False)
1.yes
2.no
3.yes
4.yes
5.no
Sana naman maka tulong
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
1. Yes
2. No
3. No
4. Yes
5. No
Step-by-step explanation:
1. If x = - 2, y = - 1
x + y = - 3 x - y = - 1
-2 + (-1) = - 3 - 2 - (-1) = - 1
-3 = - 3 (True) - 2 + 1 = - 1
- 1 = - 1 (True)
Answer: Yes
2. If x = 2, y = 5
y = 3x - 1 y = - 2x + 4
5 = 3(2) - 1 5 = - 2(2) + 4
5 = 6 - 1 5 = - 4 + 4
5 = 5 (True) 5 = 0 (False)
Answer: No
3. If x = 8, y = 2
x + y = 12 y = - x - 6
8 + 2 = 12 2 = - 8 - 6
10 = 12 (False) 2 = - 14 (False)
Answer: No
4. If x = 3, y = - 1
x + y = 2 y = x - 4
3 + (-1) =2 - 1 = 3 - 4
2 = 2 (True) - 1 = - 1 (True)
Answer: Yes
5. If x = 3, y = 2
2x - y = 4 x - 2y = 3
2(3) - 2 = 4 3 - 2(2) = 3
6 - 2 = 4 3 - 4 = 3
4 = 4 (True) - 1 = 3 (False)
Answer: No
Answer:
1.yes
2.no
3.yes
4.yes
5.no
Step-by-step explanation:
Sana naman maka tulong