Question

The graph of function g(x) is a vertical stretch of the graph of function f(x)=x ​​by a factor of 2.

Which equation describes function g(x)?


​​g(x)=f(x)−2

​​g(x)=f(x)+2

g(x)=2f(x)

​g(x)=1/2f(x)

Answer 1

g(x) = 2f(x)

Explanation:

Answer 2

Answer:
g(x) = 2f(x)


What the other options mean:

g(x) = f(x) – 2
Translation down 2 units

g(x) = f(x) + 2
Translation up 2 units

g(x) = 1/2 f(x)
Vertical compression by a factor of 1/2