Answer:
D
Step-by-step explanation:
Only one - to - one and many to one relations are functions.
I think it’s the second one because The formula would be
x=
2a
−b±
b
2
−4ac
7x = 10
•Paula added 7 to 10, which was her mistake. To fix her mistake, she would have to divide by 7, instead of adding 7. The correct answer is 10/7.
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
![y=2x-3](https://tex.z-dn.net/?f=y%3D2x-3)
We need to find the value of the function .
As we have given that x= - 1
so, we substitute the value of x in y :
![y=2x-3\\\\y=2(-1)-3\\\\y=-2-3\\\\y=-5](https://tex.z-dn.net/?f=y%3D2x-3%5C%5C%5C%5Cy%3D2%28-1%29-3%5C%5C%5C%5Cy%3D-2-3%5C%5C%5C%5Cy%3D-5)
So, the value of the function is -5.
Hence, First option is correct.
2.3 x 10 to the power of 1