anonymous
  • anonymous
Find the x and y intercepts f(x) = -x^2+4x+45
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
X intercept means plug in f(x) = 0 and solve for x Y intercept means plug in x =0 and find f(x)
anonymous
  • anonymous
|dw:1314673518595:dw|
anonymous
  • anonymous
y intercept is the constant in this case it is (0,45)

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anonymous
  • anonymous
ok, so how do i get the x intercept?
anonymous
  • anonymous
i just got them for you
anonymous
  • anonymous
did you look at the drawing
anonymous
  • anonymous
|dw:1314673935920:dw|
anonymous
  • anonymous
so 0,45 isn't correct?
anonymous
  • anonymous
that is the y intecept
anonymous
  • anonymous
the i wrote (9,0) and (-5,0) are the x intercpets
anonymous
  • anonymous
ok I guess Im just confused now.
anonymous
  • anonymous
thats cause you need to study more
anonymous
  • anonymous
I guess I do, but you are here to help people who don't get it as easily as you do right?
anonymous
  • anonymous
yeah i am
anonymous
  • anonymous
here man, check this out: To find the x intercepts, set y to be 0 and factor the polynomial like i did above, then set each term to zero and solve for x. To find the y intercept, set x to be zero and evaluate

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