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+0  
 
+1
203
5
avatar+922 

How many real solutions does the system have?

 

y=−3x−1          

 

y=x2−3x+4

 

I think 2 ?

 Feb 20, 2019
 #1
avatar+922 
+1

actually it may be zero ,indecision

 Feb 20, 2019
 #2
avatar+101872 
+4

No real solutions.....we could solve this algebraically....but this  shows that the graphs do not intersect....

 

 

https://www.desmos.com/calculator/g69psgs4hq

 

 

cool cool cool

 Feb 20, 2019
 #3
avatar+922 
+1

Thank you for checkingsmiley

jjennylove  Feb 20, 2019
 #4
avatar+18495 
+4

x^2 - 3x + 4  = -3x-1      add 3x to both sides

x^2+4 = -1                     add 1 to both sides

x^2 + 5 = 0

x^2 = -5

x =+- sqrt( -5)           No REAL solutions to the system...

 Feb 20, 2019
 #5
avatar+922 
0

Thank you !

jjennylove  Feb 21, 2019

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