[Solution Library] Suppose that f(x) = x 2 + 4 x - 21 What is the vertex of f? Find the zeros of f. What are the x-intercepts of f? Solve f(x) = -21 for x.
Question: Suppose that f(x) = x 2 + 4 x – 21
- What is the vertex of f?
- Find the zeros of f. What are the x-intercepts of f?
- Solve f(x) = -21 for x. What points are on the graph of f?
Use the information obtained in parts (a)-(c) to graph f(x) = x 2 + 4 x – 21.
Deliverable: Word Document 
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[Step-by-Step] a. Use synthetic to show that 3 is a solution of
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[Solution Library] Answer each one as true or false: (7+3i)/(5+3i)=7/5
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