A projectile is shot into the air. The altitude of the projectile after seconds is modeled by the function graphed. Time is measured in seconds and altitude ℎ() is measured in feet. Which of these statements is true?
A.
The projectile reaches a maximum altitude of 12 feet.
B.
The projectile reaches its maximum altitude after 12 seconds of flight.
C.
The projectile is launched from the ground.
D.
The altitude of the projectile is increasing on the interval 5 < < 20.

B. The projectile reaches its maximum altitude after 12 seconds of flight.

Step-by-step explanation:

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil