## stupidinmath 2 years ago DOES CHANGING THE VALUE OF H AFFECT THE SHAPE OF A PARABOLA?

1. ZeHanz

WHAT IS H? (Or: what is H? There is no need for shouting).

2. stupidinmath

From the vertex :(h,k) and, im not shouting:)

3. UnkleRhaukus

|dw:1356791184631:dw|

4. UnkleRhaukus

|dw:1356791219097:dw|

5. ZeHanz

It seems that changing the value of h has all kinds of change effects on the shape of the parabola, if you look at @UnkleRhaukus' drawings ;) or has it?

6. BluFoot

The value of h does NOT change the shape of the parabola, it merely translates it left and right.

7. ZeHanz

That's what @UnkleRhaukus tried to make clear...

8. UnkleRhaukus

|dw:1356799738352:dw|

9. precal

|dw:1356804653144:dw|

10. precal

if k is + it moves it up, if k is - it moves it down if h is + it moves it left, if h is - it moves it right if a is negative, you will have a reflection about the x axis

11. BluFoot

Actually, precal, is h is + it moves right, but in the equation you write x - h. The sign of h doesn't change. Just sayin'

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