Choose the correct procedure for calculating (f + g)(3) if f(x) = 3x − 2 and g(x) = x2 − 1.

Calculate f(3) and g(3), then write the results as an ordered pair.

Calculate f(3) and g(3), then subtract them.

Calculate g(3), plug the result into f(x) and simplify.

Calculate f(3) and g(3), then add them together.

Question

Choose the correct procedure for calculating (f + g)(3) if f(x) = 3x − 2 and g(x) = x2 − 1. 

 Calculate f(3) and g(3), then write the results as an ordered pair. 

 Calculate f(3) and g(3), then subtract them. 

 Calculate g(3), plug the result into f(x) and simplify. 

 Calculate f(3) and g(3), then add them together.

anonymous · Answer

i know i will substitute all the (x)'s for 3's but would i also subtract??

amorfide · Answer

this is f+g, so you are going to have adding as your last step

anonymous · Answer

ok thank you

amorfide · Answer

your last question was f-g which is why you subtracted

anonymous · Answer

ok