Answer:
4
Step-by-step explanation:
as it is an upward curve
X = k/y
4 = k/10
k = 4 x 10 = 40
Thus, x = 40 / y
90 = 40 / y
y = 40/90 = 4/9
Divide 20 by 2
20/2 = 10
Add and subtract 0.5* from 10
10 + 0.5 = 10.5
10 - 0.5 = 9.5
Those two numbers are your answer.
*The reason why we used 0.5 because the difference is 1, so divide 1 by 2.
Have an awesome day! :)
