katelynnxx
katelynnxx katelynnxx
  • 08-09-2020
  • Mathematics
contestada

Which quadratic has a maximum?
a. y = x2 + 2x + 2
b. y = - 2x² – 3x + 5
c. y = 0.5(x – 3)2 + 1
d. y = 2x + x2 - 1

Respuesta :

20asamame 20asamame
  • 10-09-2020

Answer:

b. y = - 2x² – 3x + 5

Step-by-step explanation:

If you check on a graphing calculator or desmos, you will see that the parabola opens down, so there is a highest point, or a maximum. You can also know that without a calculator by looking at the sign in front of x. Since answer choice b is the only one with a negative in front (meaning that the parabola opens down giving you a maximum) then you will know that that's the correct answer.

Answer Link

Otras preguntas

392 rounded to the nearest ten
In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the mone
How do daily human activities affect the ecosystem?
How does the water cycle ensure that we have water.
give an example of two number that both 6 digit number . but the greater number is determined by the hundreds place.
what are disadvantages of being unicellular?
How long does it take a person to skate the length of a hockey rink (200 feet) at a constant speed of 8 feet per second?
A stone is dropped off a cliff and is in free fall. Every second that the stone is falling, its acceleration...
A sentence with the word wayward ?
Find a logarithmic equation that relates y and xX:1, 2 , 3, 4, 5, 6Y:0.5, 2.8282, 7.968, 18, 22, 23.8I took that natural log (ln) of each of these numbers and c
good job