imshelsabetteB imshelsabetteB
  • 21-11-2016
  • Mathematics
contestada

How many times does the graph of the function below intersect or touch the x-axis? y=-3x^2+x+4 ...?

Respuesta :

syed514
syed514 syed514
  • 04-12-2016
when the graph touches x axis at that point y = 0

 So, putting y =0
  0 = -3x^2 + x +4
so, if you factoriazte it

−3x^2++4x−3x+4=0

−3x(x+1)+4(x+1)=0

(x+1)+(−3x+4)=0

x=−1,4/3

So, two time at -1 and 4/3 it touches the x-axid
Answer Link
solbgab
solbgab solbgab
  • 29-01-2019

Answer:

The answer is 2 times.


Answer Link

Otras preguntas

Name at least 5 different fish that live in the ocean. It's simple!!!
Which of the following electromagnetic waves is not used for communication? A.Gamma rays B.Microwaves C.Infrared Waves D.Radio Waves
How does satire focus on conduct in a secular society?
Which character's downfall is caused by having too much pride? A. Bombur B. the Master C. Smaug D. the Elvenking uhhh a right
PLEASE HELP!!! THIS IS FOR 10 POINTS!!! Luke has a bag of 100 colored marbles. The bag has an equal number of green and blue marbles and an equal number of red
I DON'T GET IT! >.< Which number can each term of the equation be multiplied by to eliminate the decimals before solving? 5.6j – 0.12 = 4 + 1.1j a. 0.01 b
Find a number between 364 and 384 that is both a multiple of 7 and a multiple of 3
Which character's downfall is caused by having too much pride? A. Bombur B. the Master C. Smaug D. the Elvenking uhhh a right
Name at least 5 different fish that live in the ocean. It's simple!!!
Bart practices his trumpet 1 1/4 hours each day. How many hours will he practice in 6 days?