mbgomillion2003 mbgomillion2003
  • 25-06-2020
  • Mathematics
contestada

The axis of symmetry for the graph of the function f(x)=3x2+bx+4 is x equals three-halves. What is the value of b? −18 −9 9 18

Respuesta :

temdan2001
temdan2001 temdan2001
  • 02-07-2020

Answer: B ( - 9 )

Step-by-step explanation: given the function f(x) = 3x^2 + bx + 4

And the axis of symmetry x = 3/2

The formula to calculate the axis of symmetry is :

X = -b/2a

Where

X = 3/2

a = 3

Substitute X and a into the formula

3/2 = -b/ ( 2×3)

3/2 = -b/6

Cross multiply

-2b = 18

b = - 18/2

b = - 9

Therefore, the value of b is -9

Answer Link
chikadisney1828
chikadisney1828 chikadisney1828
  • 06-12-2020

Answer:

yes, the correct answer is B: -9

Step-by-step explanation:

got it right in edg 2020

hope this is of help:)

Answer Link

Otras preguntas

I NEED IDEAS FOR A DIGITAL STORYTELLING!!! PLZ GIVE IDEAS!!
6 squared 2 divided by 2(3)+4
What concept of democracy is best illustrated by the following saying? "The right to swing my fists ends where the other man's nose bleeds"
Simplify [tex] \frac{8b^{3}}{ 20b^{3} } [/tex]
what is cloistered feminism
Which of the following are the measurements of the sides of a right triangle? a. 7, 14, 16 b. 6.2, 13.8, 20 c. 10, 11, 13 d. 9, 12, 15
The scale drawing represents Kim’s living room. She wants to put new baseboards on the walls of the room. If the scale is 2 cm:1 m and the baseboard costs $4.19
Using index cards will improve a presentation because
Which of the following physiological symptoms are signs of stress? A. Hearing and vision loss B. Dental cavities and bone loss C. Headaches and elevated blood
what is the eighth term of the sequence 2,8,32,128