SOLUTION: Your class is given a real-world scenario of a linear function in which the rate of change is - 3 and the initial value is - 10. You wrote the equation y=−3x+(−10) to rep

Question 1191870: Your class is given a real-world scenario of a linear function in which the rate of change is - 3 and the initial value is - 10. You wrote the equation y=−3x+(−10) to represent the function. Your classmate wrote y=−3x−10 . Who is correct? Justify your response.
Found 2 solutions by Theo, josgarithmetic:
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
y = -3 + (-10) is equal to y = -3 - 10
they're both correct.
here's a reference on the rules for adding, subtracting, multiplying, dividing positive and negative numbers.
https://www.cuemath.com/questions/rules-for-adding-subtracting-multiplying-and-dividing-positive-and-negative-numbers/
while they are both correct, i think y = -3 - 10 might be more correct because it has been simplified further, but that's only if the answer was required to be simplified as far as it could.
since it was not specified that the answer need to be in simplest terms, they are both equally correct.
they will both give you the exact same answer.
here's a graph to show you that they are equivalent.

both equations draw the same line on the graph.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Same thing
Meaning of Subtraction
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