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Describe and correct the error a student made when writing the quadratic function f(x)=2(x+3)^2-4 in standard form

The student did not
A. Compute 9-4 correctly
B. Compute (x+3)^2 correctly
C. Distribute 2 to all necessary terms
The function in standard form is f(x)=

Respuesta :

altavistard

Answer:

y = 2x^2 + 12x + 14

Step-by-step explanation:

Write this equation in standard form.  Start by performing the exponentiation:

y = 2(x^2 + 6x + 9) - 4

Perform the indicated multiplication:

y = 2x^2 + 12x + 18 - 4, or

y = 2x^2 + 12x + 14:  This is the quadratic function in standard form.

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