bbenezra310 bbenezra310
  • 01-07-2019
  • Mathematics
contestada

Need help here, please.

Identify the vertex of y = x2 + 4x + 5.

A. (0,0)
B. (–2,9)
C. (–2,1)
D. (4,5)

Respuesta :

absor201
absor201 absor201
  • 01-07-2019

Answer:

Option C is correct.

Step-by-step explanation:

y = x^2+4x+5

We need to find the vertex of the above equation.

The above equation represents the parabola.

The slope of parabola can be found by taking derivative of the given equation

dy/dx = 2x+4

The slope of the parabola at the vertex is zero SO,

2x+4 = 0

2x = -4

x = -4/2

x = -2

Putting value of x =-2 to find the value of y

y = x^2+4x+5

y =(-2)^2+4(-2)+5

y = 4-8+5

y =9-8

y = 1

So, the vertex is (-2,1)

Option C is correct.

Answer Link

Otras preguntas

A population of bacteria is introduced into a culture. The number of bacteria P can be modeled by P = 500 2 + 5t 60 + t2 where t is the time (in hours). Find
what is the historical development of accounting​
A solution with a pH of 6 is a base
In Tom Walker’s case, how was it dangerous for him to want to improve his lot in life?
How could a doctor tell that the pancreas is the organ that is damaged?
Can you simplify the equation 64x(squared)-112x+49
Which is of these is not an art form used by ancient Greeks
The statement “The federal government should pass the Equal Rights Amendment” could best be described as .
A weather balloon is inflated with helium to a volume of 825 L at sea level, where the temperature is 30°C and the barometric pressure is 760 torr. The balloon
How many molecules are there in 4.00 moles of sulfur dioxide?