Graph the following nonlinear system of equations and identify the two solutions.𝑦=𝑥2+6𝑥−4𝑦=−𝑥+4Group of answer choices(1,−3) and (8,−12)(−1,3) and (−8,12)(1,3) and (−8,12)(1,3) and
Question
Graph the following nonlinear system of equations and identify the two solutions.𝑦=𝑥2+6𝑥−4𝑦=−𝑥+4Group of answer choices(1,−3) and (8,−12)(−1,3) and (−8,12)(1,3) and (−8,12)(1,3) and
Solution
Para resolver el sistema de ecuaciones no lineales dado:
seguiremos los siguientes pasos:
-
Igualar las ecuaciones: Como ambas ecuaciones son iguales a , podemos igualarlas entre sí:
-
Reorganizar la ecuación: Pasamos todos los términos al mismo lado de la ecuación para igualar a cero:
-
Resolver la ecuación cuadrática: Utilizamos la fórmula general para resolver la ecuación cuadrática : En este caso, , , y :
Esto nos da dos soluciones para :
- Encontrar los valores correspondientes de : Sustituimos los valores de en una de las ecuaciones originales (usaremos ):
Para :
Para :
- Identificar las soluciones: Las soluciones del sistema de ecuaciones son los pares ordenados :
Por lo tanto, las soluciones son y . La opción correcta es:
y
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