Afootball player kicks a football with an initial vertical velocity of 65 feet per second. the function h=-16t^2+65t models the height h (in feet) of the football after t seconds. (a) find the height of the football each second after it is kicked in the air. (b) graph the model and use the graph to determine how long the football is in the air

check the picture below.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|