Need Help on Both of these, Will give 50 Points to answerer:
1 answer:
Part A: Scatter plot with best-fit line attached. You'll find the line to have equation (approximately)
The positive slope suggests that test scores and study time are directly are proportional.
Part B: Same as in a previous question you had posted. Pick two points on the provided line and compute the slope as best you can. For example, I might pick (2, 30) and (4, 40), which gives a slope of
and assuming the line passes through (2, 30) exactly, it would have equation
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For the first store, let's calculate what he paid. Since he saved 75% and saved $15, we can calculate his expense as being
So $5 in the first store.
For the next store we can calculate his expense by the rewriting 85% as 0.85 and calculate it as so
So $20 in the second store. Finally we can add the two together
So Matt spent a total of $25 on the two stores
So $5 in the first store.
For the next store we can calculate his expense by the rewriting 85% as 0.85 and calculate it as so
So $20 in the second store. Finally we can add the two together
So Matt spent a total of $25 on the two stores