One day , the tempeture ranged from a high of 20 degrease to a low of -25F. By how many degrees did the tempeture change?
1 answer:
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Answer:
The graph in the attached figure
Step-by-step explanation:
we have
-----> equation A
-----> equation B
we know that
The solution of the system of equations is the intersection point both graphs
In this problem
The intersection point is
therefore
The solution is the point
using a graphing tool
see the attached figure
