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# C3 Functions watch

1. functions h and k are defined by

h(x) = 3/x and k(x) = x + 5

write down an expression for hk(x) and solve hk(x) = 1

the expression = 3/x + 5??

how do you solve hk(x) = 1? do you sub 1 into k(x) and then that answer into h(x)

thankkks
2. You've got the expression for hk(x) correct.

If and then , so this is what you need to solve.
3. (Original post by nuodai)
You've got the expression for hk(x) correct.

If and then , so this is what you need to solve.
thank you!!

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