anonymous
  • anonymous
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:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
triciaal
  • triciaal
sorry cannot see the polynomial
triciaal
  • triciaal
|dw:1441043548155:dw|
triciaal
  • triciaal
|dw:1441043576921:dw|

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triciaal
  • triciaal
|dw:1441043626436:dw|
triciaal
  • triciaal
|dw:1441043717243:dw|
triciaal
  • triciaal
|dw:1441043802507:dw|
anonymous
  • anonymous
2x+7x-15=0 there is a exponet of 2 next to the 2x
triciaal
  • triciaal
|dw:1441043906385:dw|
triciaal
  • triciaal
you can shift the number 6 key to get the symbol for exponents
triciaal
  • triciaal
|dw:1441044017872:dw|
anonymous
  • 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
  • triciaal
|dw:1441044127218:dw||dw:1441044257083:dw|
triciaal
  • triciaal
|dw:1441044381815:dw|
anonymous
  • anonymous
what does that mean can u explain that too me plz im kinda slow
triciaal
  • 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
  • anonymous
no
triciaal
  • 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
  • anonymous
1 Attachment
anonymous
  • anonymous
@mandingo17
triciaal
  • triciaal
does this mean you have no questions for me and you don't need my help anymore either?
anonymous
  • anonymous
no i need ur help miss
triciaal
  • triciaal
regardless, solve using the formula
triciaal
  • triciaal
|dw:1441047292334:dw|
triciaal
  • triciaal
identify your a, b and c
anonymous
  • anonymous
i dont know how to do that all i can do is basic math
triciaal
  • triciaal
stop saying that and follow along you CAN do this especially since I am guiding you.
anonymous
  • anonymous
okai
triciaal
  • triciaal
REPOST |dw:1441047436041:dw|
triciaal
  • triciaal
|dw:1441047469870:dw|
triciaal
  • triciaal
match the 2 equations what is a, what is b and what is c?
triciaal
  • triciaal
|dw:1441047651597:dw|
triciaal
  • triciaal
remember when you take the square root you have 2 values , positive and negative
triciaal
  • triciaal
hello?
anonymous
  • anonymous
miss i dont understand
triciaal
  • triciaal
|dw:1441048159717:dw|
anonymous
  • anonymous
i subtract em?
triciaal
  • 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
  • anonymous
no im really have a difficult time
triciaal
  • 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
  • triciaal
do the same with the x term bx = -x same as -1x the -1 is understood here b = -1
triciaal
  • triciaal
what is the value of c?

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