To graph this problem you have to place a point on 20 and go down 5 and go over 2 to the right and do the opposite, (5 up over 2 on the left) and then you just connect the dots.
Answer:
Step-by-step explanation:
(a)
perfect positive correlation.
As x increases by 1, y increases by 1
y is 1 times x
equation: y = x
(b)
perfect negative correlation.
As x increases by 1, y decreases by -4
y is 
times x
equation: y = -4x
Although Alma did use a survey to ask her friends whether listening to music improves their test grades, she did not provide a sample nor could she experiment without using this variable. Thus, using the same reasoning, choices A, B, and C are excluded.
D) She did not use a random sample, and she tried to show cause and effect with an observational study.
Answer:
A minute
Step-by-step explanation:
If you drive 60 miles in an hour, you are technically driving 60 miles in 60 minutes. If you drive 1 mile, it takes 1 minute.
1. The answer is A
2. The answer is 3 and 4
