First Rewrite the Quadratic Function in Standard Form by Completing $$f ( x ) = 2 x ^ { 2 } + 28 x + 90$$

question 98

Multiple Choice

First rewrite the quadratic function in standard form by completing the square, then find any x-intercepts and any y-intercepts.
- $$f ( x ) = 2 x ^ { 2 } + 28 x + 90$$

• A) \(x\)-intercepts: \(- 5\) and 9 ; \(y\)-intercept: 0
• B) x-intercepts: 5 and \(9 ; y\)-intercept: \(- 90\)
• C) \(x\)-intercepts: \(- 5\) and \(- 9 ; y\)-intercept: 90
• D) \(x\)-intercepts: 5 and \(- 9 ; y\)-intercept: \(- 28\)

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