I. Given the following polynomial: . Check all that apply.
The value of the discriminant is 169.
There are 2 real roots.
There are 2 irrational roots.
The graph intersects the y-axis twice.
The parabola is directed upward.
The axis of symmetry is located at
The vertex is located at:
The roots are:
The graph intersects the y axis at (0, -15).
The graph intersects the x-axis at (-5, 0) and (1.5, 0)
II.
Use the quadratic formula to solve the following:

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- triciaal

sorry cannot see the polynomial

- triciaal

|dw:1441043548155:dw|

- triciaal

|dw:1441043576921:dw|

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## More answers

- triciaal

|dw:1441043626436:dw|

- triciaal

|dw:1441043717243:dw|

- triciaal

|dw:1441043802507:dw|

- anonymous

2x+7x-15=0 there is a exponet of 2 next to the 2x

- triciaal

|dw:1441043906385:dw|

- triciaal

you can shift the number 6 key to get the symbol for exponents

- triciaal

|dw:1441044017872:dw|

- anonymous

what do you mean tbh i dont nun of this stuff am a beginner at math and they gave me 9th grade math

- triciaal

|dw:1441044127218:dw||dw:1441044257083:dw|

- triciaal

|dw:1441044381815:dw|

- anonymous

what does that mean can u explain that too me plz im kinda slow

- triciaal

I don't understand your previous comment. was it meant for me? did you delete mine about using the exponent symbol by mistake?

- anonymous

no

- triciaal

let's review
the complete question was not posted.
I gave general information you can use for any polynomial.
you posted the polynomial .
I explained how to get the symbol for exponents.
I solve the equation.
you expressed that this is very new material and you need extra help.
please review everything and let me know what questions you have so I can give you the help you need. You might want to takes notes for the general information you will need to know it later.
I will check back in a few minutes if you have questions.

- anonymous

##### 1 Attachment

- anonymous

- triciaal

does this mean you have no questions for me and you don't need my help anymore either?

- anonymous

no i need ur help miss

- triciaal

regardless,
solve using the formula

- triciaal

|dw:1441047292334:dw|

- triciaal

identify your a, b and c

- anonymous

i dont know how to do that all i can do is basic math

- triciaal

stop saying that and follow along
you CAN do this especially since I am guiding you.

- anonymous

okai

- triciaal

REPOST
|dw:1441047436041:dw|

- triciaal

|dw:1441047469870:dw|

- triciaal

match the 2 equations
what is a, what is b and what is c?

- triciaal

|dw:1441047651597:dw|

- triciaal

remember when you take the square root you have 2 values , positive and negative

- triciaal

hello?

- anonymous

miss i dont understand

- triciaal

|dw:1441048159717:dw|

- anonymous

i subtract em?

- triciaal

the general format for the quadratic is ax^2 + bx + c = 0
here you have 3x^2 -x + 2 =0
when you compare them then you see that a = 3, b = -1 and c = 2
are you ok with this now?

- anonymous

no im really have a difficult time

- triciaal

look at the first equation with a, b and c in it
compare it with the second equation
before the x^2 is a and the number before the x^2 is 3 therefore a = 3

- triciaal

do the same with the x term
bx = -x same as -1x the -1 is understood here b = -1

- triciaal

what is the value of c?

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