Question

Given a = 3, b = -1 and k = 2, what is the equation of the graph if the parent function is y = √x ?

Answer 1

Square root functions are written as \(y=a\sqrt{(x+b)}+c\)

Answer 2

Just substitute the values given

Answer 3

But somebody else said that the root function is written as

\[y=a \sqrt{b(x-h)}+k\]
Which one is it?

Answer 4

go with this one
\(y=a \sqrt{b(x-h)}+k\)
plug your variables in, what do you get?

Answer 5

\[y=3\sqrt{-1(x-h)}+2\]

Answer 6

and h = 0

Answer 7

then it would be correct ^_^

Answer 8

So \[y=3\sqrt{-1x}+2\]
?

Answer 9

yup, I think so :)