Over what interval is the graph of f(x) = -(X + 8)2 - 1 decreasing? (-8, 0)
(8,00)
(- 00, 8)
(- 0, -8)

What is the standard form of -5x^2+2x^4-11+x^3+3x

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)