sherlynl sherlynl
  • 23-10-2019
  • Mathematics
contestada

Find the axis of symmetry and the vertex of the graph of f(x) = -5x^2 +20x -9.

Respuesta :

danran4secretaryusa danran4secretaryusa
  • 23-10-2019

Answer:

Axis of Symmetry:

x=2

Vertex:

(2,11)

Step-by-step explanation:

Finding the derivative:

f'(x)=-10x+20

Setting the slope equal to zero:

-10x+20=0      x-2=0    x=2

Finding vertex:

f(2)=-5*(2)^2+20*2-9

=-20+40-9=20-9=11

(2,11)

Answer Link

Otras preguntas

When avoidance takes place, one party to the conflict simply gives in to the demands of the other party. a. True b. False?
Solve the equation. Identify any extraneous solutions. w=sqrt 7w
PLEASEE HELP 20 POINTS Find the area of an octagon with a radius of 6 meters. Round your answer to the nearest tenth.
the blank gland controls all regulates all other glands and it secretes growth hormones
inscribed angles have the same measure as their intercepted arcs true or false?
what is the area of this trapezoid (the right leg says 8 btw)
​what is the primary role of the normal, thriving intestinal bacterial population?
What's the answer? Please help.
The LCM of 4 and 9 is ____. Numerical Answers Expected! Answer for Blank 1:
According to OSHA guidelines, what sis the employers responsibility