Evaluate the function f(x)=4.7x for x=-1 and x=2. show your work

For x=-1:
4.7(-1)= -4.7
For x=2:
4.7(2)
4.7*2= 9.4

I’m pretty sure the * means multiplication. so, if you multiply 5*1, it would equal 5. they are basically are-writing 5x1 as 5*1. so they would be… 5 10152025303540455055