Q. The system of equations represented by the graph in the xy-plane is:y=x2y=−x2+2y=x+2
Equations to Consider: We have three equations to consider:1. y=x22. y=−x2+23. y=x+2To find the points of intersection, we need to set the equations equal to each other in pairs and solve for x.
Intersection Points: First Two Equations: First, let's set the first two equations equal to each other to find their intersection points: x2=−x2+2
Solving for x: Now, let's solve for x:2x2=2x2=1x=±1
Finding y Values: We have two values for x. Now we need to find the corresponding y values by substituting x back into one of the original equations. Let's use y=x2:When x=1, y=(1)2=1When x=−1, y=(−1)2=1So the points of intersection between the first two equations are (1,1) and (−1,1).
Intersection Points: Second and Third Equations: Next, let's set the second and third equations equal to each other to find their intersection points:−x2+2=x+2
Solving for x: Now, let's solve for x:−x2−x=0x(x+1)=0x=0 or x=−1
Finding y Values: We have two values for x. Now we need to find the corresponding y values by substituting x back into one of the original equations. Let's use y=x+2:When x=0, y=0+2=2When x=−1, y=−1+2=1So the points of intersection between the second and third equations are (0,2) and (−1,1). However, we already found (−1,1) as an intersection point between the first two equations, so we only add the new point (0,2).
Intersection Points: First and Third Equations: Finally, let's set the first and third equations equal to each other to find their intersection points:x2=x+2
Solving for x: Now, let's solve for x:x2−x−2=0(x−2)(x+1)=0x=2 or x=−1
Finding y Values: We have two values for x. Now we need to find the corresponding y values by substituting x back into one of the original equations. Let's use y=x+2:When x=2, y=2+2=4When x=−1, y=−1+2=1So the points of intersection between the first and third equations are (2,4) and (−1,1). However, we already found (−1,1) as an intersection point between the first two equations and the second and third equations, so we only add the new point (2,4).
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