A Softball is thrown from a height of 20 feet at an initial velocity of 48 feet per second 1) Write the equation?
2) Find the height at t=3 second?
3) Find the vertex?
4) Find the axis of symmetry?
5) Find the time when it goes to the ground?
6) What is the maximum Height?
7) How long it takes to get to the maximum height?

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81