The scatter plot and regression line below show the relationship between how early students turned in an exam (measured by minut
es remaining in the exam) and their exam scores
The fitted line has a y-intercept if 87.
What is the best interpretation of this y-intercept?
The fitted line has a y-intercept if 87.
What is the best interpretation of this y-intercept?
2 answers:
You might be interested in
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The equation can be rewritten to vertex form, so you can tell the vertex is at (2, -5). The leading coefficient of 2 means the points will be twice as far apart vertically than they would be if the leading coefficient were 1. A couple of points are shown in the attached.
y = 2(x^2 -4x) +3
y = 2(x^2 -4x +4) +3 -8 . . . . . . complete the square
y = 2(x -2)^2 -5 . . . . . . . . . . . . finish putting in vertex form
