If the radius of the circle x² + y2 - 4x - 6y - k = 0 is4 units, find the value of k.
1 answer:
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Answer:
The translation is unit to the left and
units down
Step-by-step explanation:
we have
-----> parent function
we know that
The transformation
f(x)-----> g(x) has the following rule
That means
The translation is unit to the left and
units down
see the attached figure to better understand the problem
The current rate is simply equal to $175 per month, let us call this as rate A:
A = 175
The new rate is $94 plus $4.50 per devices, let us call this as rate B:
B = 94 + 4.50 x
where x is the number of devices connected to the network
The inequality equation for us to find x which the new plan is less than current plan is:
94 + 4.50 x < 175
Solving for x:
4.50 x < 81
x < 18
So the number of devices must be less than 18.
- From the graph, we can actually see that the new rate intersects the current rate at number of devices equal to 18. So it should really be below 18 devices.
