Question

Put the equation $y = x^2 + 8x + 15$ into the form $y = (x - h)^2 + k$: Answer: y = 

          Put the equation $y = x^2 + 8x + 15$ into the form $y = (x - h)^2 + k$:
Answer: y =
Put the equation y = x^2 + 8x + 15 into the form y = (x - h)^2 + k: Answer: y =

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Elementary and Intermediate Algebra
Elementary and Intermediate Algebra
Alan S. Tussy, R. David Gustafson 5th Edition
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Put the equation y = -8x + 15 into the form y = -h + k.
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Transcript

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00:01 Okay, here we're asked to take a quadratic function that is in standard form and put it in vertex form.
00:09 And so what we're going to do is use a process called completing the square.
00:22 So we're going to take our function here and a couple of ways to do this.
00:30 I'm going to leave, i'm going to group this together, and i'm going to just put this minus 8 way out here.
00:35 So all i've done is just kind of rearrange things a little bit, rewritten.
00:38 I haven't changed anything at this point...
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