Sketch the graph of the given function. The state the functions domain and rangef(x)=-2{1/4}^x
1 answer:
Answer:
Domain: -∞ < x < ∞
Range: f(x) < 0
Step-by-step explanation:
We need to sketch the graph and identify domain and range of the function f(x).
The graph is attached in the figure below.
Domain:
The domain of the function is all the values of x that gives the real values for f(x).
So, in our case all values of x gives real values for f(x). So domain is:
-∞ < x < ∞
Range:
The range of the function is the resulting f(x) values when we put all the values of x.
In our case the value of f(x) will always be less than zero because of the negative sign.
Range is:
f(x) < 0
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Answer:
To rent a jet ski you need to pay $50 and to rent a kayak you need to pay $20
Step-by-step explanation:
Since both shops charge the same amount for each kind of vehicle, we will assign variables to the their cost. The cost of a jet ski will be "x" and the cost of the kayak will be "y". Therefore we can create a system of equations as shown below:
Will's shop:
12*x + 9*y = 780
Fun Rentals:
7*x + 11*y = 570
We can isolate "x" on the second equation, we have:
Applying this value on the first equation:
Applying the value of "y" we found on the "x" equation above, we have:
Therefore to rent a jet ski you need to pay $50 and to rent a kayak you need to pay $20