For this case we substitute the point in each of the equations and verify if the equality is met:
Option 1:
![y = x-1\\3 = 2-1\\3 = 1](https://tex.z-dn.net/?f=y%20%3D%20x-1%5C%5C3%20%3D%202-1%5C%5C3%20%3D%201)
It is not true
Option 2:
![y = -3x\\3 = -2 (2)\\3 = -4](https://tex.z-dn.net/?f=y%20%3D%20-3x%5C%5C3%20%3D%20-2%20%282%29%5C%5C3%20%3D%20-4)
It is not true
Option 3:
![y = x + 1\\3 = 2 + 1\\3 = 3](https://tex.z-dn.net/?f=y%20%3D%20x%20%2B%201%5C%5C3%20%3D%202%20%2B%201%5C%5C3%20%3D%203)
Is fulfilled
Option 4:
![y = 3x\\3 = 3 (2)\\y = 6](https://tex.z-dn.net/?f=y%20%3D%203x%5C%5C3%20%3D%203%20%282%29%5C%5Cy%20%3D%206)
Answer:
The point belongs to the equation of the third option.
Answer:
a) -2n+14
b) -5n+30
Step-by-step explanation:
a) 12 to 10 to 8 etc. is -2 each time.
Since this is linear, so the first part is therefore -2n. To get from -2 to 12, you have to add 14. So the expression is -2n+14. Now, to prove this, we can input 5 where n is to find the 5th term, which should be 4. -2x5 = -10. -10+14 = 4. The expression is proven correct.
b) 25 to 20 to 15 etc. is -5 each time.
This is also linear, so the first part is therefore -5n. To get from -5 to 25, you have to add 30. So the expression is -5n+30. We can prove this similar to question A. We input 5 where n is to find the 5th term which should be 5. -5x5 = -25. -25+30 = 5. The expression is proven correct.
Answer:
Acute angles
Step-by-step explanation:
10 and 14 are acute angles.
Acute angles are angles less than 60.
Answer:
3
Step-by-step explanation:
:)
Answer:
2
Step-by-step explanation:
a = 1/2ab
~Divide 1/2a to both sides
2 = b
Best of Luck!