Given F(x) = X2 + 8x – 20 And G(x) = 4x – 10, What Is (f ° G)(x)? - Wyzant

Subject ZIP Search Search Find an Online Tutor Now Ask Ask a Question For Free Login Algebra 2 Given f(x) = x2 + 8x – 20 and g(x) = 4x – 10, what is (f ° g)(x)?

A= 4x2 + 32x - 90

B =16x2 - 48x

C=16x2+ 32x – 200

D= 4X2+ 22x2– 160x + 200 

Follow • 1 Add comment More Report

2 Answers By Expert Tutors

Best Newest Oldest By: Best Newest Oldest

so what you want is f(g(x)) so you want to take the equation g(x) and plug it in wherever you see an x in the f(x) equation:

f(g(x))=(4x-10)2+8(4x-10)-20 = 16x2-80x+100+32x-80-20 = 16x2-48x (Choice B)

Upvote • 0 Downvote Add comment More Report

Well substitute 4x-10 for x in f(x)

fg (x) = (4x-10)^2 + 8 (4x-10) - 20

The squared term here will be (4x)^2 = 16x^2, so it has to be b or c

The constant term will be (-10)^2 - 80 - 20 = 0

So it's going to be B

Upvote • 0 Downvote Add comment More Report

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem. Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.

¢ € £ ¥ ‰ µ · • § ¶ ß ‹ › « » < > ≤ ≥ – — ¯ ‾ ¤ ¦ ¨ ¡ ¿ ˆ ˜ ° − ± ÷ ⁄ × ƒ ∫ ∑ ∞ √ ∼ ≅ ≈ ≠ ≡ ∈ ∉ ∋ ∏ ∧ ∨ ¬ ∩ ∪ ∂ ∀ ∃ ∅ ∇ ∗ ∝ ∠ ´ ¸ ª º † ‡ À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö Ø Œ Š Ù Ú Û Ü Ý Ÿ Þ à á â ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö ø œ š ù ú û ü ý þ ÿ Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω ℵ ϖ ℜ ϒ ℘ ℑ ← ↑ → ↓ ↔ ↵ ⇐ ⇑ ⇒ ⇓ ⇔ ∴ ⊂ ⊃ ⊄ ⊆ ⊇ ⊕ ⊗ ⊥ ⋅ ⌈ ⌉ ⌊ ⌋ 〈 〉 ◊

RELATED TOPICS

Math Algebra 1 Calculus Geometry Precalculus Trigonometry Finance Probability Algebra Word Problem ... Functions Word Problems Algebra Help College Algebra Math Help Polynomials Algebra Word Problem Mathematics Algebra 2 Question Algebra 2 Help

RELATED QUESTIONS

graph, find x and y intercepts and test for symmetry x=y^3

Answers · 3

-2x/x+6+5=-x/x+6

Answers · 7

Find the mean and standard deviation for the random variable x given the following distribution

Answers · 4

using interval notation to show intervals of increasing and decreasing and postive and negative

Answers · 5

trouble spots for the domain may occur where the denominator is ? or where the expression under a square root symbol is negative

Answers · 4

RECOMMENDED TUTORS

Priti S.

5.0 (790)

Whitney T.

5 (351)

Graciele O.

5 (820) See more tutors

find an online tutor

• Algebra 2 tutors
• Algebra 1 tutors
• Algebra tutors
• College Algebra tutors
• Precalculus tutors
• 7th Grade Math tutors
• Boolean Algebra tutors
• Math tutors