Complete the square to find the vertex of this parabola. x2 - 8x - y - 4 = 0 ([?], [ ]
1 answer:
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That the answer, I hope that will help you
Answer:
<h2>a = 400/21, b = 580/21</h2>Step-by-step explanation:
Small triangles are similar. Therefore, the sides are proportional
<em>cross multiply</em>
<em>divide both sides by 21</em>
For b, we can use the Pythagorean theorem: