Answer:
you must use pemdas which is parentheses exponents multiplication division addition subtractaction
F(x)=x^2
Translated to the right 8 units: h(x)=(x-8)^2
and down 7 units: g(x)=(x-8)^2-7
Answer: Option D. g(x)=(x-8)^2-7
Differentiate to find time that gradient=0
45-9.8t=0
45=9.8t
t =4.59 secs
put this value into original equation to get 103.31