Operations with Functions

Dr. E owns a luxury store that sells purple items only! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. Which function would represent Jenna's, J, earnings in dollars for working h hours, and Sarah's, S, earnings in dollars for working h hours?

• J(h)=25h; S(h)=27h

• J(h)=25h; S(h)=27

• J(h)=25; S(h)=27h

• J(h)=25; S(h)=27

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. Now that we know our two functions, find J(8) and S(8) and tell me what these values represent in this situation.

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. Using our same two functions, find J(8)+S(8) and tell me what it represents in this situation.

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. You can add two functions by adding their function rules. (a) Add the functions J(h) and S(h) to find (J+S)(h). Then, simplify the function rule.

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. You can add two functions by adding their function rules. What does the function (J+S)(h) represent in this situation?

• The amount of dollars Dr. E does NOT need to spend on Jenna and Sarah's earnings for a shift that takes h hours

• The amount of dollars Dr. E must spend on Jenna and Sarah's earnings for a shift that takes h hours

• The amount of taxes taken out from Jenna and Sarah's earnings for a shift that takes h hours

• The amount of dollars Dr. E must spend on Sarah's earnings ONLY for a shift that takes h hours

Answer explanation

ANSWER: The amount of dollars Dr. E must spend on Jenna and Sarah's earnings for a shift that takes h hours

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. Find (J+S)(8). How does the answer compare to J(8)+S(8)?

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 8 hours tomorrow. Using (J+S)(8), how much will Dr. E spend on Jenna and Sarah's earnings for the 8-hour shift?

Dr. E owns a luxury store that sells only purple items! Jenna and Sarah are her store managers. Jenna earns $25 per hour, and Sarah earns $27 per hour. Dr. E assigned Jenna and Sarah a shift of 10 hours for Wednesday. Using (J+S)(h), how much would Dr. E spend on Jenna and Sarah's earnings for a 10-hour shift?

• $500

• $416

• $20

• $520