F⁻¹(x) is the notation for the inverse of an equation, so you just need to find the inverse equation. that's found by swapping your x and y variables:
<span>f(x) = 2x + 2 ... replace f(x) with y
y = 2x + 2 ... swap x and y variables
x = 2y + 2 ... solve for y
x = 2y + 2 ... subtract 2
x - 2 = 2y ... divide by 2
(x - 2)/2 = y
so, </span>f⁻¹(x) = (x - 2)/2 ... now you need to solve that for when x = 4. plug it in:
f⁻¹(x) = (4 - 2)/2 ... simplify the top of the fraction
f⁻¹(x) = 2/2
f⁻¹(x) = 1 is your answer.
What is the mode if this numbers 12,15,8,6,7,6,6,8,8,9,3
Ad libitum [116K]
The mode is the number that occurs a lot which in this case will be 8 and 6 and can be two numbers
Answer:
Step-by-step explanation:
plug in 7
f(x)=3(7)+2
multiply 3 and 7 which is 21
and 2
f(x)=23.
Answer:y= 4/2x +1
Step-by-step explanation:
Slope is 4/2. Y-intercept is 1.
They are not
It goes from
0/0 1/3 2/5 3/6(or 1/2) which are not the same. This makes them not proportional to one another. (I think)
