katlin95 2 years ago For the parent function y= square root x , what effect does a value of k = -3 have on the graph? A. Horizontal shift of 3 units to the right B. Horizontal shift of 3 units to the left C. Vertical shift of 3 units up D. Vertical shift of 3 units down

1. katlin95

@Mertsj

2. stamp

$f(x)=\sqrt x$ Where do you see a k

3. katlin95

after the square root right?

4. Mertsj

I think the point is that you are asking what effect a certain k value will have on the graph and no one has any idea because there is no k in the equation.

5. zepdrix

Is this the form we're suppose to use perhaps? $\large f(x)=\sqrt{x-h}+k$ Which would shift the vertex of the parabola to $$\large (h,k)$$.

6. Mertsj

parabola?

7. zepdrix

Woops :) lol ty

8. zepdrix

9. Mertsj

@zepdrix you're almost as bad as I am. lol

10. zepdrix

Blah not parabola, but the idea still holds. It would shift the..... base point? or whatever.. of the root over to $$\large (h,k)$$

11. zepdrix

The K is shifting the function UP or DOWN. Since it's negative, it will shift it downward. Yah... something like that -_-

12. KnightPezz

Yea, K shifts it vertically and H shifts it horizontally.

13. KnightPezz

Yea, K shifts it vertically and H shifts it horizontally.