A function is a relationship that each input (element of the domain) is paired with exactly one output (element in the range).

In function notation, f(x), the “x” is the input and the entire “f(x)” represents an output.
That means the last two options are wrong. They’re purposely switched up in what they say.

The correct answer is the second one, because that one is saying “each input will be paired with exactly one output.”

4 0

3 years ago

a passenger elevator in the sears tower in chicago can lift people 960 feet in 1 minute and 30 seconds. How fast must the freigh

OleMash [197]

Given that a passenger elevator in the sears tower in Chicago can lift people 960 feet in 1 minute and 30 seconds (1.5 minutes). This means that the lift is travelling with a speed of:

 $speed= \frac{distance}{time} = \frac{960}{1.5} =640ft/min$

If the elevator lifts cargo through the same height in 2 minutes and 30 seconds (2.5 minutes), then the speed is given by:

 $speed= \frac{960}{2.5} =384ft/min$

3 0

3 years ago