Which function equation is represented by the
graph?
f(x) = 20(1.5)^x
f(x) = 20(1.4)^x
f(x) = 20(2.5)^x
f(x) = 20(2.25)^x
hurry in a test

Step-by-step explanation:

we know that

The function of the graph is a exponential function of the form

Looking at the graph

we have the points

(0,20) and (1,50)

Remember that if a point lie on the graph, then the point must satisfy the function

Verify each case

For x=1, f(x)=50

case 1) we have

For x=1

so

therefore

This function is not represented by the graph

case 2) we have

For x=1

so

therefore

This function is not represented by the graph

case 3) we have

For x=1

For x=0

therefore

This function is represented by the graph

case 4) we have

For x=1

so

therefore

This function is not represented by the graph

what's that