Answer
The expression that best shows the temperature change is 7 + 7 + 7
The <em><u>correct answer</u></em> is:
d) The system can only be dependent and consistent.
Explanation:
In order for the solution to a system of equations to be a line, this means that the lines must lie on top of one another. This means they are the same line; the system is consistent since there is at least one solution, and dependent since all of the points in one equation work for the other equations as well.
Step-by-step explanation:
Mid point of (-4,1) and (4,5) is
= {(-4+4)/2, (1+5)/2}
=(0,3)
Answer is provided in the image attached.