What is the equation of the axis of symmetry for the parabola y equals start fraction one over four end fraction left parenthesis x plus two right parenthesis squared minus seven? x = −8 x = start fraction one over four end fraction x = 2 x = −2
For this case we have the following function: Â y = 1/4 (x + 2) ^ 2 - 7 Â We derive the equation: Â y '= 1/2 (x + 2) Â Equaling zero we have: Â 1/2 (x + 2) = 0 Â We clear the value of x: Â x + 2 = 0 Â x = -2 Â Answer: Â The equation of the axis of symmetry for the parabola is: Â x = -2
