alvar3z78own7j3
alvar3z78own7j3 alvar3z78own7j3
  • 03-11-2021
  • Mathematics
contestada

for the ordered pairs(x,y) that satisfy both equations what is the sum of the X and the Y value? y=x^2+2x-9,y=9-x

Respuesta :

fordjourbrightkwadwo
fordjourbrightkwadwo fordjourbrightkwadwo
  • 03-11-2021

×Since both equations are in the same variable

'y ' :. y=y

Let y=y be y1=y2

x^2+2x-9=9-x

×Solving the equation gives x=3 , x=-6

(Let x=3 be x1=3 and x=-6 be x2=-6)

×Substitute the value of x into the equations in y variables

(Both values of x, ie. 3 and -6 will satisfy the equation)

Hence the sum of X and Y values is x1+y1 or x2+y2

ie. x1 +y1

3+6= 9

ie.x2+y2

-6+15=11

In a nutshell, the sum of the X and Y value is 9 and/or 11

Ver imagen fordjourbrightkwadwo
Answer Link

Otras preguntas

Translate to an algebraic expression. 5 INCREASED BY y
PLEASEEEEE HELPPPP ASAP NEED TO GET RIGHT!!!! WILL GIVE THANKS
Solve the quadratic equation 3x^2+2=0
Seven short __________ bones make up each ankle.
Brass instruments did not acquire valves until the _____________ century.
Considering the ending of the story, the plot structure of “The Circuit” most resembles a _____. biblical story circle pyramid
Two trains leave stations 306 miles apart at the same time and travel toward each other. one train travels at 75 miles per hour while the other travels at
What is the midpoint if the line of a segment
The width of a rectangle is 8 units less than the length. If the area is 153 square units, then find the dimensions of the rectangle.
William howard taft said, “this policy has been characterized as substituting dollars for bullets. it is one that appeals alike to idealistic humanitarian senti