The scatterplot shows the amount of sleep that Aria got the night before a test and her test scores. What type of relationship d
o you see between amount of sleep and test scores?
A. In general, Aria scores lower on a test when she sleeps more and scores higher on a test when she sleeps less.
B. In general, Aria scores higher on a test no matter how much she sleeps.
C. In general, Aria scores lower on a test no matter how much she sleeps.
D. In general, Aria scores higher on a test when she sleeps more and scores lower on a test when she sleeps less.
A. In general, Aria scores lower on a test when she sleeps more and scores higher on a test when she sleeps less.
B. In general, Aria scores higher on a test no matter how much she sleeps.
C. In general, Aria scores lower on a test no matter how much she sleeps.
D. In general, Aria scores higher on a test when she sleeps more and scores lower on a test when she sleeps less.
1 answer:
You might be interested in
Step-by-step explanation:
The standard form for a line is Ax+By=C
First, we need to find the slope, or change in y over change in x. For the first one, this is
, which is impossible to find as we cannot divide by 0, meaning that this is constant horizontally -- in this case, x=2. Thus, we have 1*x+0*y=2.
For the second one, we can find the slope by getting
. We can then take the point (3,0) (it can be any point on the line) and get our equation to be y-0 = (-2/3) (x-3). Converting this to standard form, we can expand this to get
y= (-2/3)*x +2
(-2/3)*x+1*y = 2