Find the y-intercept and vertex of the following functions. State whether the vertex is a minimum or maximum point on the graph and explain your reasoning. 4. k(h) = h2 – 4h + 3 5. l(d) = d2 – 6d 6. f(x) = –7x2 – 14x – 6

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Find the y-intercept and vertex of the following functions. State whether the vertex is a minimum or
maximum point on the graph and explain your reasoning.
4. k(h) = h2 – 4h + 3
5. l(d) = d2 – 6d
6. f(x) = –7x2 – 14x – 6 

Expert Solution
Step 1

The given functions are,

4. kh=h2-4h+3

5. Id=d2-6d

6. fx=-7x2-14x-6.

We have to find its y-intercept and its vertex.

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