Question

Convert the equation from vertex form to standard form y=−4(x+5)2−3 .(1 point)
Responses

y=−4x2−25x−3
y equals negative 4 x squared minus 25 x minus 3

y=16x2+160x+397
y equals 16 x squared plus 160 x plus 397

y=16x2+160x+412
y equals 16 x squared plus 160 x plus 412

y=−4x2−40x−103
y equals negative 4 x squared minus 40 x minus 103
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1 answer

To convert the equation from vertex form \( y = -4(x + 5)^2 - 3 \) to standard form, we will first need to expand the equation.

  1. Expand the square: \[ (x + 5)^2 = x^2 + 10x + 25 \]

  2. Substitute back into the equation: \[ y = -4(x^2 + 10x + 25) - 3 \]

  3. Distribute \(-4\): \[ y = -4x^2 - 40x - 100 - 3 \]

  4. Combine like terms: \[ y = -4x^2 - 40x - 103 \]

Thus, the equation in standard form is:

\[ y = -4x^2 - 40x - 103 \]

The correct response is: y = -4x^2 - 40x - 103 (y equals negative 4 x squared minus 40 x minus 103).