1/9 because i you plug in two of the points into y2 -y1 over x2 -x1 thats what you get.
Answer:
3) C.
4) B.
5) C.
Step-by-step explanation:
Answer:
C. 4.2a + 0.8
Step-by-step explanation:
Given:
The two binomials given for addition are:
and ![-1.2a-6.3](https://tex.z-dn.net/?f=-1.2a-6.3)
Now, adding both the binomials, we get:
![5.4a+7.1+(-1.2a-6.3)](https://tex.z-dn.net/?f=5.4a%2B7.1%2B%28-1.2a-6.3%29)
Distributing the positive sign inside the second binomial, we get:
![5.4a+7.1-1.2a-6.3](https://tex.z-dn.net/?f=5.4a%2B7.1-1.2a-6.3)
Now, combining like terms using the commutative property of addition, we get:
![(5.4a-1.2a)+(7.1-6.3)](https://tex.z-dn.net/?f=%285.4a-1.2a%29%2B%287.1-6.3%29)
Simplifying the above expression, we get:
![(5.4-1.2)a+0.8\\4.2a+0.8](https://tex.z-dn.net/?f=%285.4-1.2%29a%2B0.8%5C%5C4.2a%2B0.8)
Therefore, the resulting addition of the given binomials is ![4.2a+0.8](https://tex.z-dn.net/?f=4.2a%2B0.8)
Hence, option C is the correct answer.