Question

Parabolas - y=(x+4)^2+5. Thanks in advance c:

Answer 1

yes... that is a parabola...

Answer 2

did you just need confirmation on what graph that expression is?

Answer 3

No I don't know how to do it :s

Answer 4

Sorry, I should of clarified.

Answer 5

Whts the query?

Answer 6

I feel your pain im doing the same thing, but what formula are they asking you for

Answer 7

Uhm, we have to draw a bunch of parabolas on paper in order to make the picture. The question just says - a) y=(x+4)^2+5 , y < (or equal to) 0.

Answer 8

Because the square term is positive, the parabola opens upward.

Answer 9

Yes, I know that much xD

Answer 10

When x=-4, y=5

Answer 11

when x=0, y=21

Answer 12

Yes, but how did you get that :s?

Answer 13

plug x=0 in the eqn

Answer 14

The min value of y is 5, which occurs at x=-4, so -4,5 is the vertex of the parabola

Answer 15

Understand?

Answer 16

Is the minimum value of y is 5 because that is the constant?

Answer 17

essentially yes..but see y= something squared + 5
the minimum value of something squared is zero...

Answer 18

so thats y the min vl is 5

Answer 19

Ohhh, right. I see c:

Answer 20

Now u know how to plot it?