1.The graph shows an association between variables x and y. What is the type of association between variables x and y? (use first graph) options:
no association
strong positive
perfect positive
strong negative

2.Which pair of data sets would most likely have no correlation?
options:
The number of pages in a textbook and the class size
The number of pages in a textbook and the amount of time it takes to read the textbook
The number of pages read in a textbook and the number of pages left to read in the textbook
The number of pages in a textbook and the weight of the textbook

3.What type of association is shown between the first and second variables?
(use second graph)
options:
no association
moderate positive
weak negative
perfect negative

a) t'(-3, 6) and v'(0, 3)  

step-by-step explanation:

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

$6.42

step-by-step explanation: