Answer:
2/5
Step-by-step explanation:
From the two points we have marked, they are clearly 10 units apart from -5 to 5, and the change in the y-axis is 4. So the change between the two points is 4/10 (rise over run).
4/10 simplifies to 2/5.
Answer:
3/4=9/12
Step-by-step explanation:
3x3= 9
4x3= 12
Answer:
Decrease
Step-by-step explanation:
The general form of exponential functions is 
· 
. If 
, or the base with the exponent, is bigger than 1, than the graph increases, experiencing growth. If the base is somewhere between 0 and 1, then the graph decreases, experiencing decay.
is a number in between 0 and 1, thus the graph would decrease.
Answer:
f^-1 (x) = 2x+20
Step-by-step explanation:
f(x) = 1/2x – 10
To find the inverse, replace f(x) with y
y = 1/2 x -10
Exchange x and y
x = 1/2 y- 10
Solve for y
Add 10 to each side
x+10 = 1/2 y-10+10
x+10 = 1/2 y
Multiply by 2
2(x+10) = 1/2y *2
2x+20 = y
The inverse is
f^-1 (x) = 2x+20
