Question

Determine the direction in which the graph of the following parabola opens.
f(x)=(x−5)^2−1

Answer 1

is it B

Answer 2

@Florisalreadytaken

Answer 3

firstly, why did you chose down?

Answer 4

necause it looks like it goes don

Answer 5

how?

Answer 6

ah you did it through graphing -- does it look like it opens downwards tho?

Answer 7

we can actually see that the parabola opens UPWARDS, so thatd be your answer

Answer 8

Determine the axis of symmetry of the graph of the following parabola. @Florisalreadytaken

Answer 9

(5, -1)?

Answer 10

@snowflake0531

Answer 11

is it for the same parabola? or a different one?

Answer 12

its the same parabola

Answer 13

ah ok -- so the axis of symetry would be

\[ x= -\frac{b}{2a} \]

Answer 14

how to get b and a

Answer 15

we teached you that earlier lol -- imma give you some time to remember (since you got time)

Answer 16

snowflake do not tell him

Answer 17

i want him to solve it

Answer 18

We first have to factor this out, we have ot get this to standard form \[(x-5)^2 -1\] what does this equal, remember that \[(a-b)^2 =a^2 -2ab+b^2\]

Answer 19

4 and 6?

Answer 20

yes

Answer 21

x^2-10x+24

Answer 22

\(\color{#0cbb34}{\text{Originally Posted by}}\) @klmjnmkj
x^2-10x+24
\(\color{#0cbb34}{\text{End of Quote}}\)
Yes so from this we get (x-6)(x-4) which gets us x=6 and x=4, as you've already got above

Answer 23

alright

Answer 24

whats next

Answer 25

umm now

Answer 26

OH i didnt' even read your question, i thought youw ere just solving for the zeroes

Answer 27

So you had that x^2 -10x +24
a=1
b=-10

put this into -b/2a

Answer 28

-10/2 1

Answer 29

i divid?

Answer 30

-10/2 simplifies to what

Answer 31

-5

Answer 32

do not forget we had the - at the front

Answer 33

so - times - = +

Answer 34

thus x=5

Answer 35

alright

Answer 36

the ansers 5?

Answer 37

answer* yes