:(( Holly plays tennis on the school tennis team. She can hit a tennis ball really high in the
air. She learned that the quadratic equation y = -6x² + 36x could be used to determine the
height of a tennis ball after it was hit with a tennis racket (y = the height of the tennis
ball in feet, x = seconds after the ball is hit with the racket).
a.
How long does it take for the ball to hit the ground? How can you tell?
b.
What is the highest point reached during the flight of the ball? How do you know?
C.
When was the ball exactly 48 feet off the ground? Explain your reasoning.

points are handed out whenever you post answers.

brainliest answers are handed out by the person asking the question, so whether your answer is picked depends entirely on whether the asker bothers to pick

if you're asking about your rank, it depends on having a certain number of points and a certain number of brainliest answers. for example, at the time of this writing, i have 44338 points out of 15000 needed for the next (nearly triple the requirement! ) but i only have 24 out of 50 required brainliest answers. this number decays, meaning after a certain amount of time (i think about a month), the total number of brainliest answers you've earned doesn't count toward this total. (i've been stuck at the same rank for a long

the lesson to learn here is that you shouldn't worry about points or rank. chances are, no matter how good an answer you may provide, your efforts will go mostly unnoticed unless you focus on the newest/most active questions that get posted.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

whatare you sayig

step-by-step explanation: