Answer:
f⁻¹(x) = -(x+4) / 5
Step-by-step explanation:
Given function is :
f(x) = -5x-4
We have to find the inverse of given function.
Step 1. Put y = f(x) in given function
y = -5x-4
Step 2. Add 4 to both sides of above equation
y+4= -5x-4+4
y+4 = -5x
Step 3.Divide by -5 to both sides of above equation
y+4 / (-5) = -5x / (-5)
-(y+4) / 5 = x
Step 4 . Swap sides
x = -(y+4) / 5
Step 5. Put x = f⁻¹(y) in above equation
f⁻¹(y) = -(y+4) / 5
Step 6. replace y with x
f⁻¹(x) = -(x+4) / 5 which is the inverse of f(x) = -5x-4.
Answer:
1^-100
Step-by-step explanation:
in the negative powers the negative sign stands for the fraction line symbol and the power stands for the bottom number.
7800, because 7782 is closer to 7800 than 7700
F(x) = 3/2x - 9
f(-4) = 3/2(-4) - 9
f(-4) = -6 - 9
f(-4) = -15
