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

What trait typical of the romantic era is brought out in Washington Irving's short story "The Devil and Tom Walker"?a.) the emphasis on individual choiceb.) the
causing one to feel self conscious or ill at ease
Maria gave one half of her jelly beans to Carole. Carole gave one third of those to Austin. Austin gave one fourth of those to Tony. If tony received two jelly
In vertebrates, what joins the brain to the rest of the body? A. spinal cord B. medulla oblongata C. peripheral nervous system D. vertebral column
what unit would you to measure the weigh if a chair
how to work out 3476 divided by 6
what 2 numbers equal -36 when multiplied together but equal 0 when added together?
Im factoring and i need to find what times what equals 120 but subtracts to be 7
why does piggy keep reminding jack that he has the conch? in the book Lord of the flies
What property describes the number sentence