Is {(0, 2), (3, 8), (–4, –2), (3, –6), (–1, 8), (8, 3)} a function?
RideAnS [48]
Answer: no
Step-by-step explanation:
Each of the domain values, x, output a single value, y, in a function.
This set is a not function, because the domain value 3 has two outputs.
ANSWER: y=4/3x-7
Reasoning: slope is 4/3 (change in y over change in x)
The y intercept is a -7
Then you just fill in the equation
You got to get the correct answer for someone to do that. If there is a slight issue, than thats why its marked as good.
Answer:
P(t)= 9000(0.4)^t
Step-by-step explanation:
Generally, we have an exponential function as follows;
P(t)= I(1 - r)^t
This case represents a decay ( decrease in value)
from what we have;
I represents the initial value, whereas r is the rate of change
From the question, we have that the change rate is the fraction 3/5
Writing this as a decimal, it is 0.6
substituting this back into the equation, we have;
P(t)= I(1-0.6)^t
P(t)= I(0.4)^t
I in this case is 9,000
So we have it that;
P(t) = 9000(0.4)^t
