Answer:
Step-by-step explanation:
Let 
, we need to determine 
, which can be found by applying the following property:
, 
(1)
Then,
Answer:
The third one (y=x^3) is a function because it passes the vertical line test.
Step-by-step explanation:
Answer:
1. distance = 275 ft
2. rate = 55 miles/hour
Step-by-step explanation:
April travels at the rate of 25 ft per seconds and the time she spent traveling is 11 seconds. How far she traveled is the distance she covered. The rate or the speed unit is given as ft per seconds. Therefore, the distance covered can be expressed as follows.
rate = distance/time
where
rate = 25 ft/sec
time = 11 secs
rate = distance/time
25 = distance/11
cross multiply
distance = 25 × 11
distance = 275 ft
Isaac drove for 3 hours and he covered a distance of 165 miles. The rate of travel can be expressed as follows
rate = distance/time
distance = 165 miles
time = 3 hours
rate = 165/3
rate = 55 miles/hour
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