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Find the equation of the inverse. f(x)=3x-4 Please show work
2 answers:
Answer:
=
.
Step-by-step explanation:
Given : f(x)=3x-4
To find : Find the equation of the inverse.
Solution : We have given that
f(x) = 3x - 4
Step 1:
We can write f(x) as y:
y = 3x - 4
Step 2:
Interchange x with y :x = 3y - 4
Step 3:
Now solve for y:
x +4 = 3y
On dividing by 3 both sides and swtiching the sides
y =
Here y is the inverse function of f(x)
Therefore, y = =
.
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The difference in gallons per day used is 3.6.
The formula to calculate a z-score is:
,
where X is the value used to calculate the score, μ is the mean and σ is the standard deviation. We have the z-scores so we must work backward:
For both equations, we will cancel the 1.2 by multiplying both sides:
Now we will cancel 2.2 from both equations by adding it to both sides:
3.6+2.2=X-2.2+2.2 and 0+2.2=X-2.2+2.2
5.8=X and 2.2=X
The difference in gas used per day would be given by
5.8-2.2 = 3.6.
The formula to calculate a z-score is:
where X is the value used to calculate the score, μ is the mean and σ is the standard deviation. We have the z-scores so we must work backward:
For both equations, we will cancel the 1.2 by multiplying both sides:
Now we will cancel 2.2 from both equations by adding it to both sides:
3.6+2.2=X-2.2+2.2 and 0+2.2=X-2.2+2.2
5.8=X and 2.2=X
The difference in gas used per day would be given by
5.8-2.2 = 3.6.
Answer:
Yes
Step-by-step explanation:
It's just like adding fractions where you have to find the common denominator so the fractions can be subtracted.
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