the function f(x) = 4(x+3) − 5
Lets find the inverse function f^-1(x)
step 1: Replace f(x) with y
y = 4(x+3) − 5
step 2: Replace x with y and y with x
x = 4(y+3) - 5
step 3: Solve for y
x = 4(y+3) - 5
x = 4y +12 -5
x= 4y + 7 (subtract 7 on both sides)
x - 7 = 4y (divide by 4 on both sides)
Given : x = 3
We plug in 3 for x in the inverse function
= -1
the inverse function when x = 3 is -1
Answer:
q = 0
Step-by-step explanation:
The mean increases when the outlier is removed
Answer:
1. 2
2. -3/5
3. Undefined
Step-by-step explanation:
Using the rise over run method you get 4/2, -3/5, and then for the straight vertical line, its undefined.
Answer:$.75 and $1.25
Step-by-step explanation:
X=white chocolate 4x+6y=10.50
y=dark chocolate 8x+3y=9.75
Both deal w/money solve using elimination.
4x+6(1.25)=10.50
4x+7.5==10.50
x=.75
-2(4x+6y=10.50)
8x+3y==9.75
-9y/-9=-11.25/-9
y=1.25