Answer:
Solving the equation
using quadratic formula we get 
Step-by-step explanation:
We need to solve the equation
using quadratic formula.
The quadratic formula is:

where a=1, b=-8 and c=41
Putting values in formula and finding x

So, Solving the equation
using quadratic formula we get 
Answer:
A & B
Step-by-step explanation:
15/20 is not equal
6/8 is not equal
30/50 is equal
12/20 is equal
Write the equation of the line passing through the points (-7,5) and (-5,9):

.
You also have another two points (-3,13) and (-1,17). Look whether coordinates of these points satisfy the line equation:
1. For (-3,13) you have

;
2. For (-1,17) you have

.
Conclusion: All four points lie on the line y-5=2(x+7), so <span>the relationship shown by the data is linear.</span>
Answer: Correct choice is D.<span />