Answer:
5/9
Step-by-step explanation:
Experimental was what actually happened.
Theoretical was what should happen in a perfect, equal world.
E: 6/6 = 1
T: 4/9
E-T= 1-4/9=5/9
Hello! B and D are eliminated from the start, because you don't multiply by a negative to get the amount you spent. In reality, you would multiply the number of games by the cost of it to get the real price. A doesn't make too much sense, but the negative could represent how much he spent from his allowance. Even with that, it's really not the best answer. The only answer that really works is C. The answer is C.
If you know two points on a line you can solve for slope, m (some people say rise over run, or change in y over change in x). In the attached picture, it's the top equation in blue.
Then you can plug that into the point-slope formula (middle equation, in red), which if needed can be algebraically changed to look like the slope-intercept formula (third equation, in yellow).
But to answer your question, use the point-slope formula.
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