Question

Need help on this I don’t understand.

Answer 1

(9.2 , 0)

Explanation:

vertex: (4.6 , 12.2)

parabola: y = a (x-4.6)² + 12.2

pass (0,0): 0 = a (0-4.6)² + 12.2

a = - (12.2/21.16)

2nd root (x , 0): y=0

0 = a (x-4.6)² + 12.2 (x-4.6)² = - 12.2 / a = -12.2 / (- (12.2/21.16)) = 21.16

x - 4.6 = ± √21.16 = ± 4.6

x = 0 or x = 9.2