cely987 cely987
  • 25-06-2022
  • Mathematics
contestada

Find the x- and y-intercepts of the parabola y=x^2+4x−6

Respuesta :

Medunno13
Medunno13 Medunno13
  • 28-06-2022

The x-intercepts are when y=0, so:

[tex]x^2 + 4x-6=0\\\\x=\frac{-4 \pm \sqrt{4^{2}-4(1)(-6)}}{2}\\\\x=\frac{-4 \pm \sqrt{40}}{2}\\\\x=-2 \pm \sqrt{10}[/tex]

So, the x-intercepts are at [tex]\boxed{(-2 \pm \sqrt{10}, 0)}[/tex]

The y-intercept is when x=0, so [tex]y=0^{2}+4(0)-6[/tex], and thus the y-intercept is at (0, -6).

Answer Link

Otras preguntas

10 cups Equals how many pt
Raul has a bottle of salad dressing. Is 700 milliliters or 7000 liters a more reasonable estimate for the capacity of the bottle of salad dressing?
At the dance the students were talking, laughing, and Which answer would create parallel structure in the sentence? A. they were dancing. B. they danced. C. dan
Jesse has 5 and 3/4 dozen eggs. How many eggs does he have.
The velocity of a wave is a. its direction and speed. b. the distance between two wave crests. c. the time required for a wave to move one wavelength. d. ha
Cultures often develop along with science and ____________. a. tools b. technology c. agriculture d. machines Cultures often develop along with science and
What is the cube root of 8x27? 2x3 2x9 4x3 4x9
how are proteins built using the information provided by a molecule of RNA?
What is the solution to y = 0.2x for the replacement set x = {3}?
Which one of the following, in excessive amounts, can cause mottled tooth enamel? A. Riboflavin B. Calcium C. Thiamin D. Fluoride