Question

please help i'll give medal

http://prntscr.com/3e7sw5

Answer 1

its clean.

Answer 2

\[\large y = \sqrt x\]
... so where is k in this?
is k on the right side of the equals, and currently = 1?

Answer 3

k is 3

Answer 4

if it's \[\large y = k\sqrt x\]
then \[\large y = -3\sqrt x\]
turns the graph from +ve to negative
so