If f (x) = -2(x + 7), then what is f (3)?
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Answer:
Percentage of votes in favour of new speed limit=50%
Step-by-step explanation:
There was a voting in Molly's town to set a new limit for the speed attained by a vehicle.
In Molly's town,
- Number of votes recorded=38
- Number of votes in favour of the new speed limit=19
We have to find the percentage of votes in favour of the new speed limit.
For that,the percentage of votes in favour=
Percentage of votes in favour=
Percentage of votes in favour=50%
Inverse
replace f(x) wih y
solve for x
replace x with f⁻¹(x) and y with x
so
f(x)=3x+5/7
replace
y=3x+5/7
solve for x
minnus 5/7 both sides
y-5/7=3x
divide both sides by 3
=x
replace with f⁻¹(x)
f⁻¹(x)=
replace f(x) wih y
solve for x
replace x with f⁻¹(x) and y with x
so
f(x)=3x+5/7
replace
y=3x+5/7
solve for x
minnus 5/7 both sides
y-5/7=3x
divide both sides by 3
replace with f⁻¹(x)
f⁻¹(x)=