Math Sample
Before you take a scored quiz for this lesson, try this set of practice questions. Your score on this self-check will be similar to that on your scored quiz. If you do not score well on this self-check, please review this lesson and try again.
\(\mathsf{ f(x) = 6 + 2x^4 + 7a - 6a^2 }\)
\(\mathsf{ g(x) = a^4+5a^2-6a^3 + 2 }\)
What is \(\mathsf{ (f+g)(x)}\)?
- \(\mathsf{ (f+g)(x) = 3a^4-6a^3-a^2+7a+8 }\)
- \(\mathsf{ (f+g)(x) = 2a^4-6a^3-11a^2+7a+8 }\)
- \(\mathsf{ (f+g)(x) = -6a^3-11a^2+7a+8 }\)
Did you remember to add like terms from the two functions?
Did you remember to add like terms from the two functions?
Did you remember to add like terms from the two functions?
\(\mathsf{ f(x) = 6 + 2x^4 + 7a - 6a^2 }\)
\(\mathsf{ g(x) = a^4+5a^2-6a^3 + 2 }\)
What is \(\mathsf{ (f-g)(x)}\)?
- \(\mathsf{ (f-g)(x) = 3a^4-6a^3-a^2-7a+4 }\)
- \(\mathsf{ (f-g)(x) = a^4+6a^3=11a^2+7a+4 }\)
- \(\mathsf{ (f-g)(x) = -6a^3-11a^2+7a+8 }\)
This time you needed to switch the signs of the g(x) function—and then add like terms from the two functions.
This time you needed to switch the signs of the g(x) function—and then add like terms from the two functions.
This time you needed to switch the signs of the g(x) function—and then add like terms from the two functions.
\(\mathsf{ f(x) = 2m^4-5+3m-m^3 }\)
\(\mathsf{ g(x) = 5m-m^4+2m^3+3 }\)
What is \(\mathsf{ (f-g)(x)}\)?
- \(\mathsf{ (f-g)(x) = m^4+5m^3+8m-2 }\)
- \(\mathsf{ (f-g)(x) = 3m^4-3m^3-2m-8 }\)
- \(\mathsf{ (f-g)(x) = 3m^4-3m^3-2m }\)
Did you remember to switch the signs of the g(x) function before adding like terms from the two functions?
Did you remember to switch the signs of the g(x) function before adding like terms from the two functions?
Did you remember to switch the signs of the g(x) function before adding like terms from the two functions?
\(\mathsf{ f(x) = 2m^4-5+3m-m^3 }\)
\(\mathsf{ g(x) = 5m-m^4+2m^3+3 }\)
What is \(\mathsf{ (f+g)(x)}\)?
- \(\mathsf{ (f+g)(x) = m^4-5m^3+m-2 }\)
- \(\mathsf{ (f+g)(x) = 3m^4-3m^3-2m-8 }\)
- \(\mathsf{ (f+g)(x) = m^4+m^3+8m-2 }\)
Like the first problem in this set, for this problem you just had to add like terms from the two functions.
Like the first problem in this set, for this problem you just had to add like terms from the two functions.
Like the first problem in this set, for this problem you just had to add like terms from the two functions.
Summary
Questions answered correctly:
Questions answered incorrectly: