Asked by idkhowtodomath
Use the symmetry of each quadratic function to find the maximum or minimum points.
c. y=x^2+4x-21
c. y=x^2+4x-21
Answers
Answered by
R_scott
axis of symmetry ... x = -4 / (2 * 1) = -2
y = (-2)^2 + (4 * -2) - 21 = -25
minimum at ... (-2,-25)
y = (-2)^2 + (4 * -2) - 21 = -25
minimum at ... (-2,-25)
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