Question

The function j(x)= 39x represents the number of jumping jacks (x) you can do in x minutes . How many jumping jacks can you do in 5 minutes?

Answer 1

Put x=5 in above function. J(x)= 39x. J(5) = 39x5 = 195.

Answer 2

Place x=5 in above function. J(x)= 39x. J(5) = 39x5 = 195.