I NEED HELP ASAP IM TAKING A TEST 1. Given the function f(x) = x2 and k = -3, which of the following represents a vertical shift? (2 points) A. f(x) + k B. kf(x) C. f(x + k) D. f(kx) 2. Given the functions f(x) = 2x2 - 8x, g(x) = x2 - 6x + 1, and h(x) = -2x2, rank them from least to greatest based on their axis of symmetry. (2 points) A. g(x), f(x), h(x) B. f(x), g(x), h(x) C. h(x), f(x), g(x) D. h(x), g(x), f(x)

it's

d. vertex

step-by-step explanation:

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.