Which function represents g(x), a reflection of f(x) = (10)* across the x-axis?
00
-5 A
-2 -1
2131415
O g(x) = - (10)*
O g(x) = -()
O g(x) = ( 1.)
g(x) = { (10)*
g
5

i believe the answer is 323 ft

step-by-step explanation:

cool? what is the actuall ?

step-by-step explanation:

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