A function relates an input to an ouput. (remember: an input only can have one ouput)
A)it is not a function;
Becacuse we had an input (3) with two outputs (7) and (6); look at the points (3,7) and (3,6)
B) is a function
Because ir relates an input to one output.
C)it is not a function
Becacuse we had an input (4) with two outputs (2) and (6); look at the points (4,2) and (4,6)
D) it is a function
Because it relates an input to one output
Answer: a. 14% decrease or 86% of the whole
B. 137.5% increase
Step-by-step explanation:
A. Divide new price by old price and you get .86, change that to a percent by multiplying by 100. That equals 86%, the percent of change would be the difference of 100% to 86%, which is 14%
B. Use above explanation but don’t find the difference. 77/56= 1.375, 1.375*100=137.5
Answer: The rule (x,y)=(y,-x) describes the
transformation
Step-by-step explanation:.........bc
Answer:
dwgsfa
Step-by-step explanation:
Answer:
The velocity is 8.93 meters/second.
Step-by-step explanation:
It is given that Elena runs for 28 seconds and finishes at 250 meters.
Here the displacement is 250 meters and the time is 28 seconds.
We know that 
Substitute displacement = 250 and time = 28 in above formula.

meters/second
Hence, the velocity is 8.93 meters/second.