Answer:
Only the equation is a function
Step-by-step explanation:
we have
Find out the inverse of f(x)
Let
y=f(x)
Exchange the variables (x for y and y for x)
Isolate the variable y
square root both sides
Let
The inverse function is not a function (because for one input value the function has two different output values)
therefore
Only the equation is a function
9 has the greatest value because it’s positive
When you write a scale factor, the units have to be the same. In this case, 9mm on the drawing represents 1 meter on the house. Change 1 meter to millimeters (1m = 1000mm).
9 mm on the drawing represents 1000 mm on the house.
The scale factor is 9 to 1000, or, as a fraction, 9/1000.