Your answer is correct (just change those x's to t's in the domain)! The book's answer comes from expanding (multiplying) the bracket the second piece of your function by the 0.03 and collecting like terms. It's correct, but it's not necessary to expand. You can leave the answer in the form you have it. Have a good day!
Your answer is correct (just change those x's to t's in the domain)! The book's answer comes from expanding (multiplying) the bracket the second piece of your function by the 0.03 and collecting like terms. It's correct, but it's not necessary to expand. You can leave the answer in the form you have it. Have a good day!