kbe51 kbe51
  • 13-11-2019
  • Mathematics
contestada

Solve the system y=-x² - 4x+1 and y-2x = 10.

Respuesta :

MathPhys
MathPhys MathPhys
  • 13-11-2019

Answer:

(-3, 4)

Step-by-step explanation:

y = -x² − 4x + 1

y − 2x = 10

Solve the system of equations using substitution or elimination.  Using substitution:

(-x² − 4x + 1) − 2x = 10

-x² − 6x + 1 = 10

-x² − 6x − 9 = 0

x² + 6x + 9 = 0

(x + 3)² = 0

x + 3 = 0

x = -3

y = 4

The solution is (-3, 4).

Answer Link

Otras preguntas

Approximately how many milligrams of sodium remain after 8.4 years?
JUAN ¡Hola, Linda! ¿Qué tal las clases? LINDA Bien. (1) (tomar) tres clases... química, biología y computación. Y tú, ¿cuántas clases (2) (tomar)? JUAN(3) (toma
Evaluate the function rule for the given value. y = 4 • 2^x for x = –6
Given f(x) =x-7 and g(x)= x^2 find f(g(-1))
Why is this the graph of the function f(x)=4x^2-8x+7?
What is photosynthesis
A sentence is a fragment or incomplete sentence if it lacks a​
Suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. whats its speed (in m/s) of the object after falling 2 seconds?
"Which of the following is a support activity in a firm's value chain? A) Inbound logistics B) Operations C) Sales and marketing D) Service E) Technology"
2. How does Natasha feel about Daniel flirting with her?