Answer:
(9,12) I think
Step-by-step explanation:
If the elevator stopped at the 18th floor and she got in and went 14 floors down and got off, she got off on the 4th floor
f(x) = -5x - 15
Let y = f(x)
y = -5x - 15
Switch the x and y places, and solve for y:
x = -5y - 15
-5y = x + 15
y = (x + 15)/-5
y = -(x/5) - 3
So the inverse of : f(x) = -5x - 15 is
-x/5 - 3
Answer:
V≈301.59
Step-by-step explanation:
Number of laptops = 10885/1555
= 7
The store sold 7 laptops last week.