Error analysis the solution shown for the equation is incorrect. what is the correct solution? what is the error? -3(4-r)=15
-12-3r=15
-3r=27
r=-9

r=9

Step-by-step explanation: -3(4-r)=15                                                                 -12+3r+12=15+12                                                                                                     3r/3=27/3                                                                                                             r=9                                                                                                                    

The error is that after multiplying -3 by -r the negative sign was supposed to be removed from -3r because when you multiply two negative numbers because they are similar signs the product must be inverse of the two numbers so that is why the product becomes a positive number. And the error gotten is r=-9 because of the reason I listed above. The correct solution is r=9.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

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