Question

Which of the following is a function equivalent to f(x)=4(1.8x)?

1) f(x)=7.2x
2) f(x)=4.8x
3) f(x)=3.6x
4) f(x)=2.4x

Answer 1

The equivalent function to f(x)=4(1.8x) is f(x)=7.2x, which corresponds to option 1 among the given choices.

Step-by-step explanation:

The student has asked for a function equivalent to f(x)=4(1.8x). To find an equivalent function, we must simplify the given function by multiplying the constants. Multiplying 4 and 1.8 we get 7.2, so the equivalent function is f(x)=7.2x. Therefore, among the options given, option 1) f(x)=7.2x is the correct choice.