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. Given the Function F(x)=5x^2+10x-15 Convert It to Vertex and Factored Form, and List the Key Properties of the Function, and Then

Question

. Given the function f(x)=5x^2+10x-15 convert it to vertex and factored form, and list the key properties of the function, and then graph it (graph paper on next page) [16]

Solution

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Answer

### Vertex Form: ### Factored Form: ### Key Properties:- Vertex: - Axis of Symmetry: - X-intercepts: and - Y-intercept:

Explanation

## Step 1: Convert to Vertex Form### To convert the quadratic function to vertex form, we complete the square. The vertex form of a quadratic function is given by , where is the vertex of the parabola.Given: First, factor out the coefficient of from the first two terms: Next, complete the square inside the parentheses: Add and subtract inside the parentheses: Now substitute back into the function: Thus, the vertex form is: ## Step 2: Convert to Factored Form### To convert the quadratic function to factored form, we find the roots of the equation by solving .Using the quadratic formula: where , , and : So the roots are: Thus, the factored form is: ## Step 3: List Key Properties### The key properties of the function are as follows:- **Vertex**: - **Axis of Symmetry**: - **X-intercepts**: and - **Y-intercept**: