The answer is c. When the added number is outside of the radical it adds to the y, moving it up
Answer:
y=2x^2+1
Step-by-step explanation:
a quadratic equation has a x^2 term
As you can see, every time x increases by 2, y decreases by 5.
So, we have

It means like what number equals that number.Use multiplication to figure these out.
Example : 9,15. Factors for 9-9,1,3 .Factors for 15-1,15,3,5
Hope this helps !