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frez [133]
3 years ago
5

Help PLS

Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

Her mistake is on line 2, setting the equations equal to each other.

Step-by-step explanation:

It appears that she misunderstood the requirements of  question: find the intersections of the graphs of the two equations. The first one is a quadratic equation, (mentally picture that as a parabola). The second equation is linear. (Mentally picture that as a straight line with a slope of -2) They should have 2 points of intersection. When she combined them, she created a new quadratic equation and solved to "find the zeroes" where the parabola intersects the x-axis.

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