Answer:
x=155
Step-by-step explanation:
I hope the pictures are clear and you get the concept!
Pick 2 coordinates:
I choose first & last one (0,15) & (8-9)
Change in y is 24
(15--9 = 24)
Change in x is 8
(0 - 8) = - 8
24/-8 = - 3
So, slope = - 3
Hope this helps!
x=5.1 , 1.4
use quadratic equation
