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anonymous
 one year ago
y = −x^2 + 4 y = 2x + 1
How would you solve by elimination or substitution?
anonymous
 one year ago
y = −x^2 + 4 y = 2x + 1 How would you solve by elimination or substitution?

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rvc
 one year ago
Best ResponseYou've already chosen the best response.5we have : \[\rm y=x^2+4~ and ~y=2x+1\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, I don't get how you would solve them though

rvc
 one year ago
Best ResponseYou've already chosen the best response.5so we have two values for y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0like \[x^2+4=2x+1\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but how would you subract them. Thats what im stuck on.

rvc
 one year ago
Best ResponseYou've already chosen the best response.5here it is : \[\rm 2x+1+x^24\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that is what y equals then right?

rvc
 one year ago
Best ResponseYou've already chosen the best response.5no since when we solve the equation we are left only with x. then we will put the value of x in any one of the original equation to find the value of y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Im really stuck then .. how would you find what x and y are?

rvc
 one year ago
Best ResponseYou've already chosen the best response.5here it is : \[\sf x^2+2x3=0\]

rvc
 one year ago
Best ResponseYou've already chosen the best response.5we have to solve the quadratic equation

rvc
 one year ago
Best ResponseYou've already chosen the best response.5yep now put one value at a time in either : y = 2x+1 or y=x^2+4
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