What attribute(s) of the graph of a parabola can you immediately find given the factored form of a quadratic function? What attribute(s) of the graph of a parabola can you immediately find given the vertex form of a quadratic function?

The factored form of a quadratic equation is

Where and are real numbers.

Though this form, we can deduct the parabola direction, if it opens upside or downside. Additionally, we can also deduct the x-axis interceptions, which in this case are and , they are also called the roots of the equation.

The vertex form of a quadratic equation is

Using this form we can deduct the parabola direction, if opens up or down. Also, we can deduct the vertex of the parabola, which has coordinates , parameters of the vertex form.

Therefore, as you can observe, the different forms of a quadratic equation can give us different information.

i am currently in the exact same situation rn. algebra2/adv algebra is killing

step-by-step explanation:

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

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add

$

94.09

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