C is your answer. The coefficient on the x value is always a stretch factor.
Answer:
Can you please write a logical question
To find the inverse of a function, replace every x in the equation with a y, and replace every y in the equation with an x:

Add 9 to both sides:

Square root both sides to get y by itself:

This equation can be simplified by taking the square root of 9 out of the root:


The inverse of this function is
y = 3 + √x.
70℅ = 14
100 = X
70X = 1400
X = 1400/70
X = 20
20 Euros is the full price