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

Answer:
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Answer:
translate to francais please
Step-by-step explanation:
Answer:
Step-by-step explanation:
f(x) = 2(x − 1)² + 3
= 2 ( x² - 2x +1) +3
= 2x² - 4x +2 +3
f(x) = 2x² − 4x + 5 .....standard form.