Question

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

Answer 1

does this come with a picture or some other equation with a, b, and k in it?

Answer 2

I will ask...

Answer 3

it's an equation on a graph...his computer won't let him copy and paste it

Answer 4

hmmm... can he take a screenshot and paste that in?

Answer 5

he can't

Answer 6

can you get me an answer terenzreignz??

Answer 7

@terenzreignz

Answer 8

I just don't see any possible way without that graph, sorry.

Answer 9

I don't know... what do a, b, and k even mean? D:

Answer 10

@Jasmineflvs a, b, and k would be parameters that are applied to the parent function. It depends on how they were defined in school. For example, with my students, I use

a, k, d, and c

where a represents the vertical dilation factor, k the horizontal dilation factor, d to describe the horizontal translation, and c to give the vertical translation.\[y=af[k(x -d)]+c\]For example if\[f(x)=2\sqrt{3(x +2)}\]where the parent function is\[f(x)=\sqrt{x}\]and a = 2, k = 3, d = -2, and c = 0.

This would tell us that the graph of \[f(x)=\sqrt{x}\]is

.vertically stretched by a factor of 2
.horizontally compressed by a factor of 1/3
.horizontally shifts 2 units left

Answer 11

so what is the answer...sorry I'm only helping a friend..he is almost in college...I am only in 10th grade

Answer 12

does anymore know it???

Answer 13

Well can your friend provide the parameters, that were used in class? The general form, like the one I provided above. It's not a matter of knowing it because I am a teacher, but you need to provide the the proper information, especially in such forums, in order for people to help.