Question

Choose the correct procedure for calculating (f − g)(−2) if f(x) = 13x2 and g(x) = 7x − 5.

Calculate f(−2) and g(−2), then subtract them.

Calculate f(−2) and g(−2), then add them together.

Calculate f(−2) and g(−2), then write the results as an ordered pair.

Calculate g(−2), plug the result into f(x) and simplify.

Answer 1

well split it up so you have
F(-2) - g(-2)
substitute x=-2 into each f unction and subtract answers

Answer 2

i still dont understand

Answer 3

would the answer be B because -2 replaces all the (x)'s and then i add them together??

Answer 4

oh wait im srry i just read wat u put lol

Answer 5

so AAA??

Answer 6

if you have (f − g)(−2)
you have to do them seperately
so you wuold do
f(-2) - G(-2)

this means your original function, you would replace all x's with -2
then you would have to s ubtract the two answers

Answer 7

ok so A right?