komaswifter
komaswifter komaswifter
  • 22-11-2021
  • Mathematics
contestada

Use the discriminant formula to find the number of x-intercepts in the graph of the equation.

x2 – 3x + 2 =y

b2 - 4ac

​

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 22-11-2021

Answer:

  2

Step-by-step explanation:

The values of a, b, c are ...

  a = 1, b = -3, c = 2

Then the discriminant is ...

  d = b^2 -4ac

  d = (-3)^2 -4(1)(2) = 9 -8 = 1

The discriminant is positive, so there are two x-intercepts.

_____

Additional comment

The indications given by the discriminant are ...

  d > 0, 2 real roots (2 x-intercepts)

  d = 0, 1 real root (1 x-intercept)

  d < 0, 2 complex roots (0 x-intercepts)

Answer Link

Otras preguntas

need help plz today plz
The _____ records p waves first, then s waves."
why do we heat the test tube in a glass beaker during a chemistry experiment and not directly over a flame?
What is the synonyms of the word complain
Please help me with #20 and #22
An earthworm tunnel floods during a rainstorm, and the earthworm washes out onto to the grass. Why will the earthworm die if it cannot get back into a tunnel qu
Write one sentence explaining what the setting is in "The Secret Garden" I will mark brainliest!
How are factors, zeros, and x-intercepts related
Which of the following is NOT true? Question 5 options: A dichotomous key provides a way to identify an unknown organism. Both the genus and species are c
Acceptance of the germ theory provided the rapid development of which of the following: 1.) bacteria 2.) antiseptics 3.) antibodies 4.) vaccines