The height of a ball in feet is modeled by f(x)= -16x^2 + 80x, which is shown below, where x is the time in seconds after it is hit. How long is the ball in the air? Explain how you know.​

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

not sure but it may be b, as i said i'm not sure.