Answer :

rosemass

Answer:

1. f(x)=-x^2+40x+120. Answer: it would be the same answer

2. f(x)=−x 2 +40x+120. Answer: look at the both picture

Step-by-step explanation: Hope this help :D

${teks-lihat-gambar} rosemass
${teks-lihat-gambar} rosemass

Answer:

yep! they've got the same concavity

Step-by-step explanation:

as the above asnwer states, since they're the same, they also share a concavity. difference between concavity up / concav down, you can see the shape is both like an upside down n.